diff options
Diffstat (limited to 'target/linux/at91/patches-5.10/234-clk-at91-re-factor-clocks-suspend-resume.patch')
| -rw-r--r-- | target/linux/at91/patches-5.10/234-clk-at91-re-factor-clocks-suspend-resume.patch | 1342 |
1 files changed, 0 insertions, 1342 deletions
diff --git a/target/linux/at91/patches-5.10/234-clk-at91-re-factor-clocks-suspend-resume.patch b/target/linux/at91/patches-5.10/234-clk-at91-re-factor-clocks-suspend-resume.patch deleted file mode 100644 index 5d399f6535..0000000000 --- a/target/linux/at91/patches-5.10/234-clk-at91-re-factor-clocks-suspend-resume.patch +++ /dev/null @@ -1,1342 +0,0 @@ -From 65bb4687b2a5c6f02f44345540c3389d6e7523e7 Mon Sep 17 00:00:00 2001 -From: Claudiu Beznea <claudiu.beznea@microchip.com> -Date: Mon, 11 Oct 2021 14:27:05 +0300 -Subject: [PATCH 234/247] clk: at91: re-factor clocks suspend/resume - -SAMA5D2 and SAMA7G5 have a special power saving mode (backup mode) where -most of the SoC's components are powered off (including PMC). Resuming -from this mode is done with the help of bootloader. Peripherals are not -aware of the power saving mode thus most of them are disabling clocks in -proper suspend API and re-enable them in resume API without taking into -account the previously setup rate. Moreover some of the peripherals are -acting as wakeup sources and are not disabling the clocks in this -scenario, when suspending. Since backup mode cuts the power for -peripherals, in resume part these clocks needs to be re-configured. - -The initial PMC suspend/resume code was designed only for SAMA5D2's PMC -(as it was the only one supporting backup mode). SAMA7G supports also -backup mode and its PMC is different (few new functionalities, different -registers offsets, different offsets in registers for each -functionalities). To address both SAMA5D2 and SAMA7G5 PMC add -.save_context()/.resume_context() support to each clocks driver and call -this from PMC driver. - -Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> -Link: https://lore.kernel.org/r/20211011112719.3951784-2-claudiu.beznea@microchip.com -Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> -Signed-off-by: Stephen Boyd <sboyd@kernel.org> ---- - drivers/clk/at91/clk-generated.c | 46 +++++-- - drivers/clk/at91/clk-main.c | 66 ++++++++++ - drivers/clk/at91/clk-master.c | 194 ++++++++++++++++++++++++++-- - drivers/clk/at91/clk-peripheral.c | 40 +++++- - drivers/clk/at91/clk-pll.c | 39 ++++++ - drivers/clk/at91/clk-programmable.c | 29 ++++- - drivers/clk/at91/clk-sam9x60-pll.c | 68 +++++++++- - drivers/clk/at91/clk-system.c | 20 +++ - drivers/clk/at91/clk-usb.c | 27 ++++ - drivers/clk/at91/clk-utmi.c | 39 ++++++ - drivers/clk/at91/pmc.c | 147 +-------------------- - drivers/clk/at91/pmc.h | 24 ++-- - 12 files changed, 558 insertions(+), 181 deletions(-) - ---- a/drivers/clk/at91/clk-generated.c -+++ b/drivers/clk/at91/clk-generated.c -@@ -27,6 +27,7 @@ struct clk_generated { - u32 id; - u32 gckdiv; - const struct clk_pcr_layout *layout; -+ struct at91_clk_pms pms; - u8 parent_id; - int chg_pid; - }; -@@ -34,25 +35,35 @@ struct clk_generated { - #define to_clk_generated(hw) \ - container_of(hw, struct clk_generated, hw) - --static int clk_generated_enable(struct clk_hw *hw) -+static int clk_generated_set(struct clk_generated *gck, int status) - { -- struct clk_generated *gck = to_clk_generated(hw); - unsigned long flags; -- -- pr_debug("GCLK: %s, gckdiv = %d, parent id = %d\n", -- __func__, gck->gckdiv, gck->parent_id); -+ unsigned int enable = status ? AT91_PMC_PCR_GCKEN : 0; - - spin_lock_irqsave(gck->lock, flags); - regmap_write(gck->regmap, gck->layout->offset, - (gck->id & gck->layout->pid_mask)); - regmap_update_bits(gck->regmap, gck->layout->offset, - AT91_PMC_PCR_GCKDIV_MASK | gck->layout->gckcss_mask | -- gck->layout->cmd | AT91_PMC_PCR_GCKEN, -+ gck->layout->cmd | enable, - field_prep(gck->layout->gckcss_mask, gck->parent_id) | - gck->layout->cmd | - FIELD_PREP(AT91_PMC_PCR_GCKDIV_MASK, gck->gckdiv) | -- AT91_PMC_PCR_GCKEN); -+ enable); - spin_unlock_irqrestore(gck->lock, flags); -+ -+ return 0; -+} -+ -+static int clk_generated_enable(struct clk_hw *hw) -+{ -+ struct clk_generated *gck = to_clk_generated(hw); -+ -+ pr_debug("GCLK: %s, gckdiv = %d, parent id = %d\n", -+ __func__, gck->gckdiv, gck->parent_id); -+ -+ clk_generated_set(gck, 1); -+ - return 0; - } - -@@ -249,6 +260,23 @@ static int clk_generated_set_rate(struct - return 0; - } - -+static int clk_generated_save_context(struct clk_hw *hw) -+{ -+ struct clk_generated *gck = to_clk_generated(hw); -+ -+ gck->pms.status = clk_generated_is_enabled(&gck->hw); -+ -+ return 0; -+} -+ -+static void clk_generated_restore_context(struct clk_hw *hw) -+{ -+ struct clk_generated *gck = to_clk_generated(hw); -+ -+ if (gck->pms.status) -+ clk_generated_set(gck, gck->pms.status); -+} -+ - static const struct clk_ops generated_ops = { - .enable = clk_generated_enable, - .disable = clk_generated_disable, -@@ -258,6 +286,8 @@ static const struct clk_ops generated_op - .get_parent = clk_generated_get_parent, - .set_parent = clk_generated_set_parent, - .set_rate = clk_generated_set_rate, -+ .save_context = clk_generated_save_context, -+ .restore_context = clk_generated_restore_context, - }; - - /** -@@ -324,8 +354,6 @@ at91_clk_register_generated(struct regma - if (ret) { - kfree(gck); - hw = ERR_PTR(ret); -- } else { -- pmc_register_id(id); - } - - return hw; ---- a/drivers/clk/at91/clk-main.c -+++ b/drivers/clk/at91/clk-main.c -@@ -28,6 +28,7 @@ - struct clk_main_osc { - struct clk_hw hw; - struct regmap *regmap; -+ struct at91_clk_pms pms; - }; - - #define to_clk_main_osc(hw) container_of(hw, struct clk_main_osc, hw) -@@ -37,6 +38,7 @@ struct clk_main_rc_osc { - struct regmap *regmap; - unsigned long frequency; - unsigned long accuracy; -+ struct at91_clk_pms pms; - }; - - #define to_clk_main_rc_osc(hw) container_of(hw, struct clk_main_rc_osc, hw) -@@ -51,6 +53,7 @@ struct clk_rm9200_main { - struct clk_sam9x5_main { - struct clk_hw hw; - struct regmap *regmap; -+ struct at91_clk_pms pms; - u8 parent; - }; - -@@ -120,10 +123,29 @@ static int clk_main_osc_is_prepared(stru - return (status & AT91_PMC_MOSCS) && clk_main_parent_select(tmp); - } - -+static int clk_main_osc_save_context(struct clk_hw *hw) -+{ -+ struct clk_main_osc *osc = to_clk_main_osc(hw); -+ -+ osc->pms.status = clk_main_osc_is_prepared(hw); -+ -+ return 0; -+} -+ -+static void clk_main_osc_restore_context(struct clk_hw *hw) -+{ -+ struct clk_main_osc *osc = to_clk_main_osc(hw); -+ -+ if (osc->pms.status) -+ clk_main_osc_prepare(hw); -+} -+ - static const struct clk_ops main_osc_ops = { - .prepare = clk_main_osc_prepare, - .unprepare = clk_main_osc_unprepare, - .is_prepared = clk_main_osc_is_prepared, -+ .save_context = clk_main_osc_save_context, -+ .restore_context = clk_main_osc_restore_context, - }; - - struct clk_hw * __init -@@ -240,12 +262,31 @@ static unsigned long clk_main_rc_osc_rec - return osc->accuracy; - } - -+static int clk_main_rc_osc_save_context(struct clk_hw *hw) -+{ -+ struct clk_main_rc_osc *osc = to_clk_main_rc_osc(hw); -+ -+ osc->pms.status = clk_main_rc_osc_is_prepared(hw); -+ -+ return 0; -+} -+ -+static void clk_main_rc_osc_restore_context(struct clk_hw *hw) -+{ -+ struct clk_main_rc_osc *osc = to_clk_main_rc_osc(hw); -+ -+ if (osc->pms.status) -+ clk_main_rc_osc_prepare(hw); -+} -+ - static const struct clk_ops main_rc_osc_ops = { - .prepare = clk_main_rc_osc_prepare, - .unprepare = clk_main_rc_osc_unprepare, - .is_prepared = clk_main_rc_osc_is_prepared, - .recalc_rate = clk_main_rc_osc_recalc_rate, - .recalc_accuracy = clk_main_rc_osc_recalc_accuracy, -+ .save_context = clk_main_rc_osc_save_context, -+ .restore_context = clk_main_rc_osc_restore_context, - }; - - struct clk_hw * __init -@@ -465,12 +506,37 @@ static u8 clk_sam9x5_main_get_parent(str - return clk_main_parent_select(status); - } - -+static int clk_sam9x5_main_save_context(struct clk_hw *hw) -+{ -+ struct clk_sam9x5_main *clkmain = to_clk_sam9x5_main(hw); -+ -+ clkmain->pms.status = clk_main_rc_osc_is_prepared(&clkmain->hw); -+ clkmain->pms.parent = clk_sam9x5_main_get_parent(&clkmain->hw); -+ -+ return 0; -+} -+ -+static void clk_sam9x5_main_restore_context(struct clk_hw *hw) -+{ -+ struct clk_sam9x5_main *clkmain = to_clk_sam9x5_main(hw); -+ int ret; -+ -+ ret = clk_sam9x5_main_set_parent(hw, clkmain->pms.parent); -+ if (ret) -+ return; -+ -+ if (clkmain->pms.status) -+ clk_sam9x5_main_prepare(hw); -+} -+ - static const struct clk_ops sam9x5_main_ops = { - .prepare = clk_sam9x5_main_prepare, - .is_prepared = clk_sam9x5_main_is_prepared, - .recalc_rate = clk_sam9x5_main_recalc_rate, - .set_parent = clk_sam9x5_main_set_parent, - .get_parent = clk_sam9x5_main_get_parent, -+ .save_context = clk_sam9x5_main_save_context, -+ .restore_context = clk_sam9x5_main_restore_context, - }; - - struct clk_hw * __init ---- a/drivers/clk/at91/clk-master.c -+++ b/drivers/clk/at91/clk-master.c -@@ -37,6 +37,7 @@ struct clk_master { - spinlock_t *lock; - const struct clk_master_layout *layout; - const struct clk_master_characteristics *characteristics; -+ struct at91_clk_pms pms; - u32 *mux_table; - u32 mckr; - int chg_pid; -@@ -112,10 +113,52 @@ static unsigned long clk_master_div_reca - return rate; - } - -+static int clk_master_div_save_context(struct clk_hw *hw) -+{ -+ struct clk_master *master = to_clk_master(hw); -+ struct clk_hw *parent_hw = clk_hw_get_parent(hw); -+ unsigned long flags; -+ unsigned int mckr, div; -+ -+ spin_lock_irqsave(master->lock, flags); -+ regmap_read(master->regmap, master->layout->offset, &mckr); -+ spin_unlock_irqrestore(master->lock, flags); -+ -+ mckr &= master->layout->mask; -+ div = (mckr >> MASTER_DIV_SHIFT) & MASTER_DIV_MASK; -+ div = master->characteristics->divisors[div]; -+ -+ master->pms.parent_rate = clk_hw_get_rate(parent_hw); -+ master->pms.rate = DIV_ROUND_CLOSEST(master->pms.parent_rate, div); -+ -+ return 0; -+} -+ -+static void clk_master_div_restore_context(struct clk_hw *hw) -+{ -+ struct clk_master *master = to_clk_master(hw); -+ unsigned long flags; -+ unsigned int mckr; -+ u8 div; -+ -+ spin_lock_irqsave(master->lock, flags); -+ regmap_read(master->regmap, master->layout->offset, &mckr); -+ spin_unlock_irqrestore(master->lock, flags); -+ -+ mckr &= master->layout->mask; -+ div = (mckr >> MASTER_DIV_SHIFT) & MASTER_DIV_MASK; -+ div = master->characteristics->divisors[div]; -+ -+ if (div != DIV_ROUND_CLOSEST(master->pms.parent_rate, master->pms.rate)) -+ pr_warn("MCKR DIV not configured properly by firmware!\n"); -+} -+ - static const struct clk_ops master_div_ops = { - .prepare = clk_master_prepare, - .is_prepared = clk_master_is_prepared, - .recalc_rate = clk_master_div_recalc_rate, -+ .save_context = clk_master_div_save_context, -+ .restore_context = clk_master_div_restore_context, - }; - - static int clk_master_div_set_rate(struct clk_hw *hw, unsigned long rate, -@@ -125,7 +168,9 @@ static int clk_master_div_set_rate(struc - const struct clk_master_characteristics *characteristics = - master->characteristics; - unsigned long flags; -+ unsigned int mckr, tmp; - int div, i; -+ int ret; - - div = DIV_ROUND_CLOSEST(parent_rate, rate); - if (div > ARRAY_SIZE(characteristics->divisors)) -@@ -145,11 +190,24 @@ static int clk_master_div_set_rate(struc - return -EINVAL; - - spin_lock_irqsave(master->lock, flags); -- regmap_update_bits(master->regmap, master->layout->offset, -- (MASTER_DIV_MASK << MASTER_DIV_SHIFT), -- (div << MASTER_DIV_SHIFT)); -+ ret = regmap_read(master->regmap, master->layout->offset, &mckr); -+ if (ret) -+ goto unlock; -+ -+ tmp = mckr & master->layout->mask; -+ tmp = (tmp >> MASTER_DIV_SHIFT) & MASTER_DIV_MASK; -+ if (tmp == div) -+ goto unlock; -+ -+ mckr &= ~(MASTER_DIV_MASK << MASTER_DIV_SHIFT); -+ mckr |= (div << MASTER_DIV_SHIFT); -+ ret = regmap_write(master->regmap, master->layout->offset, mckr); -+ if (ret) -+ goto unlock; -+ - while (!clk_master_ready(master)) - cpu_relax(); -+unlock: - spin_unlock_irqrestore(master->lock, flags); - - return 0; -@@ -197,12 +255,25 @@ static int clk_master_div_determine_rate - return 0; - } - -+static void clk_master_div_restore_context_chg(struct clk_hw *hw) -+{ -+ struct clk_master *master = to_clk_master(hw); -+ int ret; -+ -+ ret = clk_master_div_set_rate(hw, master->pms.rate, -+ master->pms.parent_rate); -+ if (ret) -+ pr_warn("Failed to restore MCK DIV clock\n"); -+} -+ - static const struct clk_ops master_div_ops_chg = { - .prepare = clk_master_prepare, - .is_prepared = clk_master_is_prepared, - .recalc_rate = clk_master_div_recalc_rate, - .determine_rate = clk_master_div_determine_rate, - .set_rate = clk_master_div_set_rate, -+ .save_context = clk_master_div_save_context, -+ .restore_context = clk_master_div_restore_context_chg, - }; - - static void clk_sama7g5_master_best_diff(struct clk_rate_request *req, -@@ -272,7 +343,8 @@ static int clk_master_pres_set_rate(stru - { - struct clk_master *master = to_clk_master(hw); - unsigned long flags; -- unsigned int pres; -+ unsigned int pres, mckr, tmp; -+ int ret; - - pres = DIV_ROUND_CLOSEST(parent_rate, rate); - if (pres > MASTER_PRES_MAX) -@@ -284,15 +356,27 @@ static int clk_master_pres_set_rate(stru - pres = ffs(pres) - 1; - - spin_lock_irqsave(master->lock, flags); -- regmap_update_bits(master->regmap, master->layout->offset, -- (MASTER_PRES_MASK << master->layout->pres_shift), -- (pres << master->layout->pres_shift)); -+ ret = regmap_read(master->regmap, master->layout->offset, &mckr); -+ if (ret) -+ goto unlock; -+ -+ mckr &= master->layout->mask; -+ tmp = (mckr >> master->layout->pres_shift) & MASTER_PRES_MASK; -+ if (pres == tmp) -+ goto unlock; -+ -+ mckr &= ~(MASTER_PRES_MASK << master->layout->pres_shift); -+ mckr |= (pres << master->layout->pres_shift); -+ ret = regmap_write(master->regmap, master->layout->offset, mckr); -+ if (ret) -+ goto unlock; - - while (!clk_master_ready(master)) - cpu_relax(); -+unlock: - spin_unlock_irqrestore(master->lock, flags); - -- return 0; -+ return ret; - } - - static unsigned long clk_master_pres_recalc_rate(struct clk_hw *hw, -@@ -330,11 +414,68 @@ static u8 clk_master_pres_get_parent(str - return mckr & AT91_PMC_CSS; - } - -+static int clk_master_pres_save_context(struct clk_hw *hw) -+{ -+ struct clk_master *master = to_clk_master(hw); -+ struct clk_hw *parent_hw = clk_hw_get_parent(hw); -+ unsigned long flags; -+ unsigned int val, pres; -+ -+ spin_lock_irqsave(master->lock, flags); -+ regmap_read(master->regmap, master->layout->offset, &val); -+ spin_unlock_irqrestore(master->lock, flags); -+ -+ val &= master->layout->mask; -+ pres = (val >> master->layout->pres_shift) & MASTER_PRES_MASK; -+ if (pres == MASTER_PRES_MAX && master->characteristics->have_div3_pres) -+ pres = 3; -+ else -+ pres = (1 << pres); -+ -+ master->pms.parent = val & AT91_PMC_CSS; -+ master->pms.parent_rate = clk_hw_get_rate(parent_hw); -+ master->pms.rate = DIV_ROUND_CLOSEST_ULL(master->pms.parent_rate, pres); -+ -+ return 0; -+} -+ -+static void clk_master_pres_restore_context(struct clk_hw *hw) -+{ -+ struct clk_master *master = to_clk_master(hw); -+ unsigned long flags; -+ unsigned int val, pres; -+ -+ spin_lock_irqsave(master->lock, flags); -+ regmap_read(master->regmap, master->layout->offset, &val); -+ spin_unlock_irqrestore(master->lock, flags); -+ -+ val &= master->layout->mask; -+ pres = (val >> master->layout->pres_shift) & MASTER_PRES_MASK; -+ if (pres == MASTER_PRES_MAX && master->characteristics->have_div3_pres) -+ pres = 3; -+ else -+ pres = (1 << pres); -+ -+ if (master->pms.rate != -+ DIV_ROUND_CLOSEST_ULL(master->pms.parent_rate, pres) || -+ (master->pms.parent != (val & AT91_PMC_CSS))) -+ pr_warn("MCKR PRES was not configured properly by firmware!\n"); -+} -+ -+static void clk_master_pres_restore_context_chg(struct clk_hw *hw) -+{ -+ struct clk_master *master = to_clk_master(hw); -+ -+ clk_master_pres_set_rate(hw, master->pms.rate, master->pms.parent_rate); -+} -+ - static const struct clk_ops master_pres_ops = { - .prepare = clk_master_prepare, - .is_prepared = clk_master_is_prepared, - .recalc_rate = clk_master_pres_recalc_rate, - .get_parent = clk_master_pres_get_parent, -+ .save_context = clk_master_pres_save_context, -+ .restore_context = clk_master_pres_restore_context, - }; - - static const struct clk_ops master_pres_ops_chg = { -@@ -344,6 +485,8 @@ static const struct clk_ops master_pres_ - .recalc_rate = clk_master_pres_recalc_rate, - .get_parent = clk_master_pres_get_parent, - .set_rate = clk_master_pres_set_rate, -+ .save_context = clk_master_pres_save_context, -+ .restore_context = clk_master_pres_restore_context_chg, - }; - - static struct clk_hw * __init -@@ -539,20 +682,21 @@ static int clk_sama7g5_master_set_parent - return 0; - } - --static int clk_sama7g5_master_enable(struct clk_hw *hw) -+static void clk_sama7g5_master_set(struct clk_master *master, -+ unsigned int status) - { -- struct clk_master *master = to_clk_master(hw); - unsigned long flags; - unsigned int val, cparent; -+ unsigned int enable = status ? PMC_MCR_EN : 0; - - spin_lock_irqsave(master->lock, flags); - - regmap_write(master->regmap, PMC_MCR, PMC_MCR_ID(master->id)); - regmap_read(master->regmap, PMC_MCR, &val); - regmap_update_bits(master->regmap, PMC_MCR, -- PMC_MCR_EN | PMC_MCR_CSS | PMC_MCR_DIV | -+ enable | PMC_MCR_CSS | PMC_MCR_DIV | - PMC_MCR_CMD | PMC_MCR_ID_MSK, -- PMC_MCR_EN | (master->parent << PMC_MCR_CSS_SHIFT) | -+ enable | (master->parent << PMC_MCR_CSS_SHIFT) | - (master->div << MASTER_DIV_SHIFT) | - PMC_MCR_CMD | PMC_MCR_ID(master->id)); - -@@ -563,6 +707,13 @@ static int clk_sama7g5_master_enable(str - cpu_relax(); - - spin_unlock_irqrestore(master->lock, flags); -+} -+ -+static int clk_sama7g5_master_enable(struct clk_hw *hw) -+{ -+ struct clk_master *master = to_clk_master(hw); -+ -+ clk_sama7g5_master_set(master, 1); - - return 0; - } -@@ -620,6 +771,23 @@ static int clk_sama7g5_master_set_rate(s - return 0; - } - -+static int clk_sama7g5_master_save_context(struct clk_hw *hw) -+{ -+ struct clk_master *master = to_clk_master(hw); -+ -+ master->pms.status = clk_sama7g5_master_is_enabled(hw); -+ -+ return 0; -+} -+ -+static void clk_sama7g5_master_restore_context(struct clk_hw *hw) -+{ -+ struct clk_master *master = to_clk_master(hw); -+ -+ if (master->pms.status) -+ clk_sama7g5_master_set(master, master->pms.status); -+} -+ - static const struct clk_ops sama7g5_master_ops = { - .enable = clk_sama7g5_master_enable, - .disable = clk_sama7g5_master_disable, -@@ -629,6 +797,8 @@ static const struct clk_ops sama7g5_mast - .set_rate = clk_sama7g5_master_set_rate, - .get_parent = clk_sama7g5_master_get_parent, - .set_parent = clk_sama7g5_master_set_parent, -+ .save_context = clk_sama7g5_master_save_context, -+ .restore_context = clk_sama7g5_master_restore_context, - }; - - struct clk_hw * __init ---- a/drivers/clk/at91/clk-peripheral.c -+++ b/drivers/clk/at91/clk-peripheral.c -@@ -37,6 +37,7 @@ struct clk_sam9x5_peripheral { - u32 id; - u32 div; - const struct clk_pcr_layout *layout; -+ struct at91_clk_pms pms; - bool auto_div; - int chg_pid; - }; -@@ -155,10 +156,11 @@ static void clk_sam9x5_peripheral_autodi - periph->div = shift; - } - --static int clk_sam9x5_peripheral_enable(struct clk_hw *hw) -+static int clk_sam9x5_peripheral_set(struct clk_sam9x5_peripheral *periph, -+ unsigned int status) - { -- struct clk_sam9x5_peripheral *periph = to_clk_sam9x5_peripheral(hw); - unsigned long flags; -+ unsigned int enable = status ? AT91_PMC_PCR_EN : 0; - - if (periph->id < PERIPHERAL_ID_MIN) - return 0; -@@ -168,15 +170,21 @@ static int clk_sam9x5_peripheral_enable( - (periph->id & periph->layout->pid_mask)); - regmap_update_bits(periph->regmap, periph->layout->offset, - periph->layout->div_mask | periph->layout->cmd | -- AT91_PMC_PCR_EN, -+ enable, - field_prep(periph->layout->div_mask, periph->div) | -- periph->layout->cmd | -- AT91_PMC_PCR_EN); -+ periph->layout->cmd | enable); - spin_unlock_irqrestore(periph->lock, flags); - - return 0; - } - -+static int clk_sam9x5_peripheral_enable(struct clk_hw *hw) -+{ -+ struct clk_sam9x5_peripheral *periph = to_clk_sam9x5_peripheral(hw); -+ -+ return clk_sam9x5_peripheral_set(periph, 1); -+} -+ - static void clk_sam9x5_peripheral_disable(struct clk_hw *hw) - { - struct clk_sam9x5_peripheral *periph = to_clk_sam9x5_peripheral(hw); -@@ -393,6 +401,23 @@ static int clk_sam9x5_peripheral_set_rat - return -EINVAL; - } - -+static int clk_sam9x5_peripheral_save_context(struct clk_hw *hw) -+{ -+ struct clk_sam9x5_peripheral *periph = to_clk_sam9x5_peripheral(hw); -+ -+ periph->pms.status = clk_sam9x5_peripheral_is_enabled(hw); -+ -+ return 0; -+} -+ -+static void clk_sam9x5_peripheral_restore_context(struct clk_hw *hw) -+{ -+ struct clk_sam9x5_peripheral *periph = to_clk_sam9x5_peripheral(hw); -+ -+ if (periph->pms.status) -+ clk_sam9x5_peripheral_set(periph, periph->pms.status); -+} -+ - static const struct clk_ops sam9x5_peripheral_ops = { - .enable = clk_sam9x5_peripheral_enable, - .disable = clk_sam9x5_peripheral_disable, -@@ -400,6 +425,8 @@ static const struct clk_ops sam9x5_perip - .recalc_rate = clk_sam9x5_peripheral_recalc_rate, - .round_rate = clk_sam9x5_peripheral_round_rate, - .set_rate = clk_sam9x5_peripheral_set_rate, -+ .save_context = clk_sam9x5_peripheral_save_context, -+ .restore_context = clk_sam9x5_peripheral_restore_context, - }; - - static const struct clk_ops sam9x5_peripheral_chg_ops = { -@@ -409,6 +436,8 @@ static const struct clk_ops sam9x5_perip - .recalc_rate = clk_sam9x5_peripheral_recalc_rate, - .determine_rate = clk_sam9x5_peripheral_determine_rate, - .set_rate = clk_sam9x5_peripheral_set_rate, -+ .save_context = clk_sam9x5_peripheral_save_context, -+ .restore_context = clk_sam9x5_peripheral_restore_context, - }; - - struct clk_hw * __init -@@ -460,7 +489,6 @@ at91_clk_register_sam9x5_peripheral(stru - hw = ERR_PTR(ret); - } else { - clk_sam9x5_peripheral_autodiv(periph); -- pmc_register_id(id); - } - - return hw; ---- a/drivers/clk/at91/clk-pll.c -+++ b/drivers/clk/at91/clk-pll.c -@@ -40,6 +40,7 @@ struct clk_pll { - u16 mul; - const struct clk_pll_layout *layout; - const struct clk_pll_characteristics *characteristics; -+ struct at91_clk_pms pms; - }; - - static inline bool clk_pll_ready(struct regmap *regmap, int id) -@@ -260,6 +261,42 @@ static int clk_pll_set_rate(struct clk_h - return 0; - } - -+static int clk_pll_save_context(struct clk_hw *hw) -+{ -+ struct clk_pll *pll = to_clk_pll(hw); -+ struct clk_hw *parent_hw = clk_hw_get_parent(hw); -+ -+ pll->pms.parent_rate = clk_hw_get_rate(parent_hw); -+ pll->pms.rate = clk_pll_recalc_rate(&pll->hw, pll->pms.parent_rate); -+ pll->pms.status = clk_pll_ready(pll->regmap, PLL_REG(pll->id)); -+ -+ return 0; -+} -+ -+static void clk_pll_restore_context(struct clk_hw *hw) -+{ -+ struct clk_pll *pll = to_clk_pll(hw); -+ unsigned long calc_rate; -+ unsigned int pllr, pllr_out, pllr_count; -+ u8 out = 0; -+ -+ if (pll->characteristics->out) -+ out = pll->characteristics->out[pll->range]; -+ -+ regmap_read(pll->regmap, PLL_REG(pll->id), &pllr); -+ -+ calc_rate = (pll->pms.parent_rate / PLL_DIV(pllr)) * -+ (PLL_MUL(pllr, pll->layout) + 1); -+ pllr_count = (pllr >> PLL_COUNT_SHIFT) & PLL_MAX_COUNT; -+ pllr_out = (pllr >> PLL_OUT_SHIFT) & out; -+ -+ if (pll->pms.rate != calc_rate || -+ pll->pms.status != clk_pll_ready(pll->regmap, PLL_REG(pll->id)) || -+ pllr_count != PLL_MAX_COUNT || -+ (out && pllr_out != out)) -+ pr_warn("PLLAR was not configured properly by firmware\n"); -+} -+ - static const struct clk_ops pll_ops = { - .prepare = clk_pll_prepare, - .unprepare = clk_pll_unprepare, -@@ -267,6 +304,8 @@ static const struct clk_ops pll_ops = { - .recalc_rate = clk_pll_recalc_rate, - .round_rate = clk_pll_round_rate, - .set_rate = clk_pll_set_rate, -+ .save_context = clk_pll_save_context, -+ .restore_context = clk_pll_restore_context, - }; - - struct clk_hw * __init ---- a/drivers/clk/at91/clk-programmable.c -+++ b/drivers/clk/at91/clk-programmable.c -@@ -24,6 +24,7 @@ struct clk_programmable { - u32 *mux_table; - u8 id; - const struct clk_programmable_layout *layout; -+ struct at91_clk_pms pms; - }; - - #define to_clk_programmable(hw) container_of(hw, struct clk_programmable, hw) -@@ -177,12 +178,38 @@ static int clk_programmable_set_rate(str - return 0; - } - -+static int clk_programmable_save_context(struct clk_hw *hw) -+{ -+ struct clk_programmable *prog = to_clk_programmable(hw); -+ struct clk_hw *parent_hw = clk_hw_get_parent(hw); -+ -+ prog->pms.parent = clk_programmable_get_parent(hw); -+ prog->pms.parent_rate = clk_hw_get_rate(parent_hw); -+ prog->pms.rate = clk_programmable_recalc_rate(hw, prog->pms.parent_rate); -+ -+ return 0; -+} -+ -+static void clk_programmable_restore_context(struct clk_hw *hw) -+{ -+ struct clk_programmable *prog = to_clk_programmable(hw); -+ int ret; -+ -+ ret = clk_programmable_set_parent(hw, prog->pms.parent); -+ if (ret) -+ return; -+ -+ clk_programmable_set_rate(hw, prog->pms.rate, prog->pms.parent_rate); -+} -+ - static const struct clk_ops programmable_ops = { - .recalc_rate = clk_programmable_recalc_rate, - .determine_rate = clk_programmable_determine_rate, - .get_parent = clk_programmable_get_parent, - .set_parent = clk_programmable_set_parent, - .set_rate = clk_programmable_set_rate, -+ .save_context = clk_programmable_save_context, -+ .restore_context = clk_programmable_restore_context, - }; - - struct clk_hw * __init -@@ -221,8 +248,6 @@ at91_clk_register_programmable(struct re - if (ret) { - kfree(prog); - hw = ERR_PTR(ret); -- } else { -- pmc_register_pck(id); - } - - return hw; ---- a/drivers/clk/at91/clk-sam9x60-pll.c -+++ b/drivers/clk/at91/clk-sam9x60-pll.c -@@ -38,12 +38,14 @@ struct sam9x60_pll_core { - - struct sam9x60_frac { - struct sam9x60_pll_core core; -+ struct at91_clk_pms pms; - u32 frac; - u16 mul; - }; - - struct sam9x60_div { - struct sam9x60_pll_core core; -+ struct at91_clk_pms pms; - u8 div; - }; - -@@ -75,9 +77,8 @@ static unsigned long sam9x60_frac_pll_re - DIV_ROUND_CLOSEST_ULL((u64)parent_rate * frac->frac, (1 << 22)); - } - --static int sam9x60_frac_pll_prepare(struct clk_hw *hw) -+static int sam9x60_frac_pll_set(struct sam9x60_pll_core *core) - { -- struct sam9x60_pll_core *core = to_sam9x60_pll_core(hw); - struct sam9x60_frac *frac = to_sam9x60_frac(core); - struct regmap *regmap = core->regmap; - unsigned int val, cfrac, cmul; -@@ -141,6 +142,13 @@ unlock: - return 0; - } - -+static int sam9x60_frac_pll_prepare(struct clk_hw *hw) -+{ -+ struct sam9x60_pll_core *core = to_sam9x60_pll_core(hw); -+ -+ return sam9x60_frac_pll_set(core); -+} -+ - static void sam9x60_frac_pll_unprepare(struct clk_hw *hw) - { - struct sam9x60_pll_core *core = to_sam9x60_pll_core(hw); -@@ -280,6 +288,25 @@ unlock: - return ret; - } - -+static int sam9x60_frac_pll_save_context(struct clk_hw *hw) -+{ -+ struct sam9x60_pll_core *core = to_sam9x60_pll_core(hw); -+ struct sam9x60_frac *frac = to_sam9x60_frac(core); -+ -+ frac->pms.status = sam9x60_pll_ready(core->regmap, core->id); -+ -+ return 0; -+} -+ -+static void sam9x60_frac_pll_restore_context(struct clk_hw *hw) -+{ -+ struct sam9x60_pll_core *core = to_sam9x60_pll_core(hw); -+ struct sam9x60_frac *frac = to_sam9x60_frac(core); -+ -+ if (frac->pms.status) -+ sam9x60_frac_pll_set(core); -+} -+ - static const struct clk_ops sam9x60_frac_pll_ops = { - .prepare = sam9x60_frac_pll_prepare, - .unprepare = sam9x60_frac_pll_unprepare, -@@ -287,6 +314,8 @@ static const struct clk_ops sam9x60_frac - .recalc_rate = sam9x60_frac_pll_recalc_rate, - .round_rate = sam9x60_frac_pll_round_rate, - .set_rate = sam9x60_frac_pll_set_rate, -+ .save_context = sam9x60_frac_pll_save_context, -+ .restore_context = sam9x60_frac_pll_restore_context, - }; - - static const struct clk_ops sam9x60_frac_pll_ops_chg = { -@@ -296,11 +325,12 @@ static const struct clk_ops sam9x60_frac - .recalc_rate = sam9x60_frac_pll_recalc_rate, - .round_rate = sam9x60_frac_pll_round_rate, - .set_rate = sam9x60_frac_pll_set_rate_chg, -+ .save_context = sam9x60_frac_pll_save_context, -+ .restore_context = sam9x60_frac_pll_restore_context, - }; - --static int sam9x60_div_pll_prepare(struct clk_hw *hw) -+static int sam9x60_div_pll_set(struct sam9x60_pll_core *core) - { -- struct sam9x60_pll_core *core = to_sam9x60_pll_core(hw); - struct sam9x60_div *div = to_sam9x60_div(core); - struct regmap *regmap = core->regmap; - unsigned long flags; -@@ -334,6 +364,13 @@ unlock: - return 0; - } - -+static int sam9x60_div_pll_prepare(struct clk_hw *hw) -+{ -+ struct sam9x60_pll_core *core = to_sam9x60_pll_core(hw); -+ -+ return sam9x60_div_pll_set(core); -+} -+ - static void sam9x60_div_pll_unprepare(struct clk_hw *hw) - { - struct sam9x60_pll_core *core = to_sam9x60_pll_core(hw); -@@ -482,6 +519,25 @@ unlock: - return 0; - } - -+static int sam9x60_div_pll_save_context(struct clk_hw *hw) -+{ -+ struct sam9x60_pll_core *core = to_sam9x60_pll_core(hw); -+ struct sam9x60_div *div = to_sam9x60_div(core); -+ -+ div->pms.status = sam9x60_div_pll_is_prepared(hw); -+ -+ return 0; -+} -+ -+static void sam9x60_div_pll_restore_context(struct clk_hw *hw) -+{ -+ struct sam9x60_pll_core *core = to_sam9x60_pll_core(hw); -+ struct sam9x60_div *div = to_sam9x60_div(core); -+ -+ if (div->pms.status) -+ sam9x60_div_pll_set(core); -+} -+ - static const struct clk_ops sam9x60_div_pll_ops = { - .prepare = sam9x60_div_pll_prepare, - .unprepare = sam9x60_div_pll_unprepare, -@@ -489,6 +545,8 @@ static const struct clk_ops sam9x60_div_ - .recalc_rate = sam9x60_div_pll_recalc_rate, - .round_rate = sam9x60_div_pll_round_rate, - .set_rate = sam9x60_div_pll_set_rate, -+ .save_context = sam9x60_div_pll_save_context, -+ .restore_context = sam9x60_div_pll_restore_context, - }; - - static const struct clk_ops sam9x60_div_pll_ops_chg = { -@@ -498,6 +556,8 @@ static const struct clk_ops sam9x60_div_ - .recalc_rate = sam9x60_div_pll_recalc_rate, - .round_rate = sam9x60_div_pll_round_rate, - .set_rate = sam9x60_div_pll_set_rate_chg, -+ .save_context = sam9x60_div_pll_save_context, -+ .restore_context = sam9x60_div_pll_restore_context, - }; - - struct clk_hw * __init ---- a/drivers/clk/at91/clk-system.c -+++ b/drivers/clk/at91/clk-system.c -@@ -20,6 +20,7 @@ - struct clk_system { - struct clk_hw hw; - struct regmap *regmap; -+ struct at91_clk_pms pms; - u8 id; - }; - -@@ -77,10 +78,29 @@ static int clk_system_is_prepared(struct - return !!(status & (1 << sys->id)); - } - -+static int clk_system_save_context(struct clk_hw *hw) -+{ -+ struct clk_system *sys = to_clk_system(hw); -+ -+ sys->pms.status = clk_system_is_prepared(hw); -+ -+ return 0; -+} -+ -+static void clk_system_restore_context(struct clk_hw *hw) -+{ -+ struct clk_system *sys = to_clk_system(hw); -+ -+ if (sys->pms.status) -+ clk_system_prepare(&sys->hw); -+} -+ - static const struct clk_ops system_ops = { - .prepare = clk_system_prepare, - .unprepare = clk_system_unprepare, - .is_prepared = clk_system_is_prepared, -+ .save_context = clk_system_save_context, -+ .restore_context = clk_system_restore_context, - }; - - struct clk_hw * __init ---- a/drivers/clk/at91/clk-usb.c -+++ b/drivers/clk/at91/clk-usb.c -@@ -24,6 +24,7 @@ - struct at91sam9x5_clk_usb { - struct clk_hw hw; - struct regmap *regmap; -+ struct at91_clk_pms pms; - u32 usbs_mask; - u8 num_parents; - }; -@@ -148,12 +149,38 @@ static int at91sam9x5_clk_usb_set_rate(s - return 0; - } - -+static int at91sam9x5_usb_save_context(struct clk_hw *hw) -+{ -+ struct at91sam9x5_clk_usb *usb = to_at91sam9x5_clk_usb(hw); -+ struct clk_hw *parent_hw = clk_hw_get_parent(hw); -+ -+ usb->pms.parent = at91sam9x5_clk_usb_get_parent(hw); -+ usb->pms.parent_rate = clk_hw_get_rate(parent_hw); -+ usb->pms.rate = at91sam9x5_clk_usb_recalc_rate(hw, usb->pms.parent_rate); -+ -+ return 0; -+} -+ -+static void at91sam9x5_usb_restore_context(struct clk_hw *hw) -+{ -+ struct at91sam9x5_clk_usb *usb = to_at91sam9x5_clk_usb(hw); -+ int ret; -+ -+ ret = at91sam9x5_clk_usb_set_parent(hw, usb->pms.parent); -+ if (ret) -+ return; -+ -+ at91sam9x5_clk_usb_set_rate(hw, usb->pms.rate, usb->pms.parent_rate); -+} -+ - static const struct clk_ops at91sam9x5_usb_ops = { - .recalc_rate = at91sam9x5_clk_usb_recalc_rate, - .determine_rate = at91sam9x5_clk_usb_determine_rate, - .get_parent = at91sam9x5_clk_usb_get_parent, - .set_parent = at91sam9x5_clk_usb_set_parent, - .set_rate = at91sam9x5_clk_usb_set_rate, -+ .save_context = at91sam9x5_usb_save_context, -+ .restore_context = at91sam9x5_usb_restore_context, - }; - - static int at91sam9n12_clk_usb_enable(struct clk_hw *hw) ---- a/drivers/clk/at91/clk-utmi.c -+++ b/drivers/clk/at91/clk-utmi.c -@@ -23,6 +23,7 @@ struct clk_utmi { - struct clk_hw hw; - struct regmap *regmap_pmc; - struct regmap *regmap_sfr; -+ struct at91_clk_pms pms; - }; - - #define to_clk_utmi(hw) container_of(hw, struct clk_utmi, hw) -@@ -113,11 +114,30 @@ static unsigned long clk_utmi_recalc_rat - return UTMI_RATE; - } - -+static int clk_utmi_save_context(struct clk_hw *hw) -+{ -+ struct clk_utmi *utmi = to_clk_utmi(hw); -+ -+ utmi->pms.status = clk_utmi_is_prepared(hw); -+ -+ return 0; -+} -+ -+static void clk_utmi_restore_context(struct clk_hw *hw) -+{ -+ struct clk_utmi *utmi = to_clk_utmi(hw); -+ -+ if (utmi->pms.status) -+ clk_utmi_prepare(hw); -+} -+ - static const struct clk_ops utmi_ops = { - .prepare = clk_utmi_prepare, - .unprepare = clk_utmi_unprepare, - .is_prepared = clk_utmi_is_prepared, - .recalc_rate = clk_utmi_recalc_rate, -+ .save_context = clk_utmi_save_context, -+ .restore_context = clk_utmi_restore_context, - }; - - static struct clk_hw * __init -@@ -232,10 +252,29 @@ static int clk_utmi_sama7g5_is_prepared( - return 0; - } - -+static int clk_utmi_sama7g5_save_context(struct clk_hw *hw) -+{ -+ struct clk_utmi *utmi = to_clk_utmi(hw); -+ -+ utmi->pms.status = clk_utmi_sama7g5_is_prepared(hw); -+ -+ return 0; -+} -+ -+static void clk_utmi_sama7g5_restore_context(struct clk_hw *hw) -+{ -+ struct clk_utmi *utmi = to_clk_utmi(hw); -+ -+ if (utmi->pms.status) -+ clk_utmi_sama7g5_prepare(hw); -+} -+ - static const struct clk_ops sama7g5_utmi_ops = { - .prepare = clk_utmi_sama7g5_prepare, - .is_prepared = clk_utmi_sama7g5_is_prepared, - .recalc_rate = clk_utmi_recalc_rate, -+ .save_context = clk_utmi_sama7g5_save_context, -+ .restore_context = clk_utmi_sama7g5_restore_context, - }; - - struct clk_hw * __init ---- a/drivers/clk/at91/pmc.c -+++ b/drivers/clk/at91/pmc.c -@@ -3,6 +3,7 @@ - * Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com> - */ - -+#include <linux/clk.h> - #include <linux/clk-provider.h> - #include <linux/clkdev.h> - #include <linux/clk/at91_pmc.h> -@@ -14,8 +15,6 @@ - - #include <asm/proc-fns.h> - --#include <dt-bindings/clock/at91.h> -- - #include "pmc.h" - - #define PMC_MAX_IDS 128 -@@ -111,147 +110,19 @@ struct pmc_data *pmc_data_allocate(unsig - } - - #ifdef CONFIG_PM --static struct regmap *pmcreg; -- --static u8 registered_ids[PMC_MAX_IDS]; --static u8 registered_pcks[PMC_MAX_PCKS]; -- --static struct --{ -- u32 scsr; -- u32 pcsr0; -- u32 uckr; -- u32 mor; -- u32 mcfr; -- u32 pllar; -- u32 mckr; -- u32 usb; -- u32 imr; -- u32 pcsr1; -- u32 pcr[PMC_MAX_IDS]; -- u32 audio_pll0; -- u32 audio_pll1; -- u32 pckr[PMC_MAX_PCKS]; --} pmc_cache; -- --/* -- * As Peripheral ID 0 is invalid on AT91 chips, the identifier is stored -- * without alteration in the table, and 0 is for unused clocks. -- */ --void pmc_register_id(u8 id) -+static int at91_pmc_suspend(void) - { -- int i; -- -- for (i = 0; i < PMC_MAX_IDS; i++) { -- if (registered_ids[i] == 0) { -- registered_ids[i] = id; -- break; -- } -- if (registered_ids[i] == id) -- break; -- } -+ return clk_save_context(); - } - --/* -- * As Programmable Clock 0 is valid on AT91 chips, there is an offset -- * of 1 between the stored value and the real clock ID. -- */ --void pmc_register_pck(u8 pck) -+static void at91_pmc_resume(void) - { -- int i; -- -- for (i = 0; i < PMC_MAX_PCKS; i++) { -- if (registered_pcks[i] == 0) { -- registered_pcks[i] = pck + 1; -- break; -- } -- if (registered_pcks[i] == (pck + 1)) -- break; -- } --} -- --static int pmc_suspend(void) --{ -- int i; -- u8 num; -- -- regmap_read(pmcreg, AT91_PMC_SCSR, &pmc_cache.scsr); -- regmap_read(pmcreg, AT91_PMC_PCSR, &pmc_cache.pcsr0); -- regmap_read(pmcreg, AT91_CKGR_UCKR, &pmc_cache.uckr); -- regmap_read(pmcreg, AT91_CKGR_MOR, &pmc_cache.mor); -- regmap_read(pmcreg, AT91_CKGR_MCFR, &pmc_cache.mcfr); -- regmap_read(pmcreg, AT91_CKGR_PLLAR, &pmc_cache.pllar); -- regmap_read(pmcreg, AT91_PMC_MCKR, &pmc_cache.mckr); -- regmap_read(pmcreg, AT91_PMC_USB, &pmc_cache.usb); -- regmap_read(pmcreg, AT91_PMC_IMR, &pmc_cache.imr); -- regmap_read(pmcreg, AT91_PMC_PCSR1, &pmc_cache.pcsr1); -- -- for (i = 0; registered_ids[i]; i++) { -- regmap_write(pmcreg, AT91_PMC_PCR, -- (registered_ids[i] & AT91_PMC_PCR_PID_MASK)); -- regmap_read(pmcreg, AT91_PMC_PCR, -- &pmc_cache.pcr[registered_ids[i]]); -- } -- for (i = 0; registered_pcks[i]; i++) { -- num = registered_pcks[i] - 1; -- regmap_read(pmcreg, AT91_PMC_PCKR(num), &pmc_cache.pckr[num]); -- } -- -- return 0; --} -- --static bool pmc_ready(unsigned int mask) --{ -- unsigned int status; -- -- regmap_read(pmcreg, AT91_PMC_SR, &status); -- -- return ((status & mask) == mask) ? 1 : 0; --} -- --static void pmc_resume(void) --{ -- int i; -- u8 num; -- u32 tmp; -- u32 mask = AT91_PMC_MCKRDY | AT91_PMC_LOCKA; -- -- regmap_read(pmcreg, AT91_PMC_MCKR, &tmp); -- if (pmc_cache.mckr != tmp) -- pr_warn("MCKR was not configured properly by the firmware\n"); -- regmap_read(pmcreg, AT91_CKGR_PLLAR, &tmp); -- if (pmc_cache.pllar != tmp) -- pr_warn("PLLAR was not configured properly by the firmware\n"); -- -- regmap_write(pmcreg, AT91_PMC_SCER, pmc_cache.scsr); -- regmap_write(pmcreg, AT91_PMC_PCER, pmc_cache.pcsr0); -- regmap_write(pmcreg, AT91_CKGR_UCKR, pmc_cache.uckr); -- regmap_write(pmcreg, AT91_CKGR_MOR, pmc_cache.mor); -- regmap_write(pmcreg, AT91_CKGR_MCFR, pmc_cache.mcfr); -- regmap_write(pmcreg, AT91_PMC_USB, pmc_cache.usb); -- regmap_write(pmcreg, AT91_PMC_IMR, pmc_cache.imr); -- regmap_write(pmcreg, AT91_PMC_PCER1, pmc_cache.pcsr1); -- -- for (i = 0; registered_ids[i]; i++) { -- regmap_write(pmcreg, AT91_PMC_PCR, -- pmc_cache.pcr[registered_ids[i]] | -- AT91_PMC_PCR_CMD); -- } -- for (i = 0; registered_pcks[i]; i++) { -- num = registered_pcks[i] - 1; -- regmap_write(pmcreg, AT91_PMC_PCKR(num), pmc_cache.pckr[num]); -- } -- -- if (pmc_cache.uckr & AT91_PMC_UPLLEN) -- mask |= AT91_PMC_LOCKU; -- -- while (!pmc_ready(mask)) -- cpu_relax(); -+ clk_restore_context(); - } - - static struct syscore_ops pmc_syscore_ops = { -- .suspend = pmc_suspend, -- .resume = pmc_resume, -+ .suspend = at91_pmc_suspend, -+ .resume = at91_pmc_resume, - }; - - static const struct of_device_id sama5d2_pmc_dt_ids[] = { -@@ -271,11 +142,7 @@ static int __init pmc_register_ops(void) - of_node_put(np); - return -ENODEV; - } -- -- pmcreg = device_node_to_regmap(np); - of_node_put(np); -- if (IS_ERR(pmcreg)) -- return PTR_ERR(pmcreg); - - register_syscore_ops(&pmc_syscore_ops); - ---- a/drivers/clk/at91/pmc.h -+++ b/drivers/clk/at91/pmc.h -@@ -13,6 +13,8 @@ - #include <linux/regmap.h> - #include <linux/spinlock.h> - -+#include <dt-bindings/clock/at91.h> -+ - extern spinlock_t pmc_pcr_lock; - - struct pmc_data { -@@ -98,6 +100,20 @@ struct clk_pcr_layout { - u32 pid_mask; - }; - -+/** -+ * struct at91_clk_pms - Power management state for AT91 clock -+ * @rate: clock rate -+ * @parent_rate: clock parent rate -+ * @status: clock status (enabled or disabled) -+ * @parent: clock parent index -+ */ -+struct at91_clk_pms { -+ unsigned long rate; -+ unsigned long parent_rate; -+ unsigned int status; -+ unsigned int parent; -+}; -+ - #define field_get(_mask, _reg) (((_reg) & (_mask)) >> (ffs(_mask) - 1)) - #define field_prep(_mask, _val) (((_val) << (ffs(_mask) - 1)) & (_mask)) - -@@ -248,12 +264,4 @@ struct clk_hw * __init - at91_clk_sama7g5_register_utmi(struct regmap *regmap, const char *name, - const char *parent_name); - --#ifdef CONFIG_PM --void pmc_register_id(u8 id); --void pmc_register_pck(u8 pck); --#else --static inline void pmc_register_id(u8 id) {} --static inline void pmc_register_pck(u8 pck) {} --#endif -- - #endif /* __PMC_H_ */ |