diff options
Diffstat (limited to 'target/linux/bcm53xx/patches-5.10/070-v5.17-phy-bcm-ns-usb2-support-updated-DT-binding-with-PHY-.patch')
| -rw-r--r-- | target/linux/bcm53xx/patches-5.10/070-v5.17-phy-bcm-ns-usb2-support-updated-DT-binding-with-PHY-.patch | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/target/linux/bcm53xx/patches-5.10/070-v5.17-phy-bcm-ns-usb2-support-updated-DT-binding-with-PHY-.patch b/target/linux/bcm53xx/patches-5.10/070-v5.17-phy-bcm-ns-usb2-support-updated-DT-binding-with-PHY-.patch deleted file mode 100644 index 464849bc69..0000000000 --- a/target/linux/bcm53xx/patches-5.10/070-v5.17-phy-bcm-ns-usb2-support-updated-DT-binding-with-PHY-.patch +++ /dev/null @@ -1,131 +0,0 @@ -From d3bc6269e21fc474763708e79c7a118740befb94 Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> -Date: Tue, 26 Oct 2021 11:37:16 +0200 -Subject: [PATCH] phy: bcm-ns-usb2: support updated DT binding with PHY reg - space -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -Updated DT binding maps just a PHY's register space instead of the whole -DMU block. Accessing a common CRU reg is handled using syscon & -regmap. - -The old binding has been deprecated and remains supported as a fallback -method. - -Signed-off-by: Rafał Miłecki <rafal@milecki.pl> -Link: https://lore.kernel.org/r/20211026093716.5567-1-zajec5@gmail.com -Signed-off-by: Vinod Koul <vkoul@kernel.org> ---- - drivers/phy/broadcom/phy-bcm-ns-usb2.c | 52 +++++++++++++++++++++----- - 1 file changed, 43 insertions(+), 9 deletions(-) - ---- a/drivers/phy/broadcom/phy-bcm-ns-usb2.c -+++ b/drivers/phy/broadcom/phy-bcm-ns-usb2.c -@@ -9,17 +9,23 @@ - #include <linux/clk.h> - #include <linux/delay.h> - #include <linux/err.h> -+#include <linux/mfd/syscon.h> - #include <linux/module.h> - #include <linux/of_address.h> - #include <linux/of_platform.h> - #include <linux/phy/phy.h> - #include <linux/platform_device.h> -+#include <linux/regmap.h> - #include <linux/slab.h> - - struct bcm_ns_usb2 { - struct device *dev; - struct clk *ref_clk; - struct phy *phy; -+ struct regmap *clkset; -+ void __iomem *base; -+ -+ /* Deprecated binding */ - void __iomem *dmu; - }; - -@@ -27,7 +33,6 @@ static int bcm_ns_usb2_phy_init(struct p - { - struct bcm_ns_usb2 *usb2 = phy_get_drvdata(phy); - struct device *dev = usb2->dev; -- void __iomem *dmu = usb2->dmu; - u32 ref_clk_rate, usb2ctl, usb_pll_ndiv, usb_pll_pdiv; - int err = 0; - -@@ -44,7 +49,10 @@ static int bcm_ns_usb2_phy_init(struct p - goto err_clk_off; - } - -- usb2ctl = readl(dmu + BCMA_DMU_CRU_USB2_CONTROL); -+ if (usb2->base) -+ usb2ctl = readl(usb2->base); -+ else -+ usb2ctl = readl(usb2->dmu + BCMA_DMU_CRU_USB2_CONTROL); - - if (usb2ctl & BCMA_DMU_CRU_USB2_CONTROL_USB_PLL_PDIV_MASK) { - usb_pll_pdiv = usb2ctl; -@@ -58,15 +66,24 @@ static int bcm_ns_usb2_phy_init(struct p - usb_pll_ndiv = (1920000000 * usb_pll_pdiv) / ref_clk_rate; - - /* Unlock DMU PLL settings with some magic value */ -- writel(0x0000ea68, dmu + BCMA_DMU_CRU_CLKSET_KEY); -+ if (usb2->clkset) -+ regmap_write(usb2->clkset, 0, 0x0000ea68); -+ else -+ writel(0x0000ea68, usb2->dmu + BCMA_DMU_CRU_CLKSET_KEY); - - /* Write USB 2.0 PLL control setting */ - usb2ctl &= ~BCMA_DMU_CRU_USB2_CONTROL_USB_PLL_NDIV_MASK; - usb2ctl |= usb_pll_ndiv << BCMA_DMU_CRU_USB2_CONTROL_USB_PLL_NDIV_SHIFT; -- writel(usb2ctl, dmu + BCMA_DMU_CRU_USB2_CONTROL); -+ if (usb2->base) -+ writel(usb2ctl, usb2->base); -+ else -+ writel(usb2ctl, usb2->dmu + BCMA_DMU_CRU_USB2_CONTROL); - - /* Lock DMU PLL settings */ -- writel(0x00000000, dmu + BCMA_DMU_CRU_CLKSET_KEY); -+ if (usb2->clkset) -+ regmap_write(usb2->clkset, 0, 0x00000000); -+ else -+ writel(0x00000000, usb2->dmu + BCMA_DMU_CRU_CLKSET_KEY); - - err_clk_off: - clk_disable_unprepare(usb2->ref_clk); -@@ -91,11 +108,28 @@ static int bcm_ns_usb2_probe(struct plat - return -ENOMEM; - usb2->dev = dev; - -- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dmu"); -- usb2->dmu = devm_ioremap_resource(dev, res); -- if (IS_ERR(usb2->dmu)) { -- dev_err(dev, "Failed to map DMU regs\n"); -- return PTR_ERR(usb2->dmu); -+ if (of_find_property(dev->of_node, "brcm,syscon-clkset", NULL)) { -+ usb2->base = devm_platform_ioremap_resource(pdev, 0); -+ if (IS_ERR(usb2->base)) { -+ dev_err(dev, "Failed to map control reg\n"); -+ return PTR_ERR(usb2->base); -+ } -+ -+ usb2->clkset = syscon_regmap_lookup_by_phandle(dev->of_node, -+ "brcm,syscon-clkset"); -+ if (IS_ERR(usb2->clkset)) { -+ dev_err(dev, "Failed to lookup clkset regmap\n"); -+ return PTR_ERR(usb2->clkset); -+ } -+ } else { -+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dmu"); -+ usb2->dmu = devm_ioremap_resource(dev, res); -+ if (IS_ERR(usb2->dmu)) { -+ dev_err(dev, "Failed to map DMU regs\n"); -+ return PTR_ERR(usb2->dmu); -+ } -+ -+ dev_warn(dev, "using deprecated DT binding\n"); - } - - usb2->ref_clk = devm_clk_get(dev, "phy-ref-clk"); |