diff options
Diffstat (limited to 'target/linux/at91/patches-5.10/131-pinctrl-at91-pio4-add-support-for-fewer-lines-on-las.patch')
| -rw-r--r-- | target/linux/at91/patches-5.10/131-pinctrl-at91-pio4-add-support-for-fewer-lines-on-las.patch | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/target/linux/at91/patches-5.10/131-pinctrl-at91-pio4-add-support-for-fewer-lines-on-las.patch b/target/linux/at91/patches-5.10/131-pinctrl-at91-pio4-add-support-for-fewer-lines-on-las.patch deleted file mode 100644 index 78db5a0d32..0000000000 --- a/target/linux/at91/patches-5.10/131-pinctrl-at91-pio4-add-support-for-fewer-lines-on-las.patch +++ /dev/null @@ -1,70 +0,0 @@ -From 7cb1dad7a7dfe4cfe55ebe86930dd6aef0de66b4 Mon Sep 17 00:00:00 2001 -From: Eugen Hristev <eugen.hristev@microchip.com> -Date: Fri, 13 Nov 2020 15:24:29 +0200 -Subject: [PATCH 131/247] pinctrl: at91-pio4: add support for fewer lines on - last PIO bank - -Some products, like sama7g5, do not have a full last bank of PIO lines. -In this case for example, sama7g5 only has 8 lines for the PE bank. -PA0-31, PB0-31, PC0-31, PD0-31, PE0-7, in total 136 lines. -To cope with this situation, added a data attribute that is product dependent, -to specify the number of lines of the last bank. -In case this number is different from the macro ATMEL_PIO_NPINS_PER_BANK, -adjust the total number of lines accordingly. -This will avoid advertising 160 lines instead of the actual 136, as this -product supports, and to avoid reading/writing to invalid register addresses. - -Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> -Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com> -Link: https://lore.kernel.org/r/20201113132429.420940-1-eugen.hristev@microchip.com -Signed-off-by: Linus Walleij <linus.walleij@linaro.org> ---- - drivers/pinctrl/pinctrl-at91-pio4.c | 18 ++++++++++++++++-- - 1 file changed, 16 insertions(+), 2 deletions(-) - ---- a/drivers/pinctrl/pinctrl-at91-pio4.c -+++ b/drivers/pinctrl/pinctrl-at91-pio4.c -@@ -71,8 +71,15 @@ - /* Custom pinconf parameters */ - #define ATMEL_PIN_CONFIG_DRIVE_STRENGTH (PIN_CONFIG_END + 1) - -+/** -+ * struct atmel_pioctrl_data - Atmel PIO controller (pinmux + gpio) data struct -+ * @nbanks: number of PIO banks -+ * @last_bank_count: number of lines in the last bank (can be less than -+ * the rest of the banks). -+ */ - struct atmel_pioctrl_data { - unsigned nbanks; -+ unsigned last_bank_count; - }; - - struct atmel_group { -@@ -980,11 +987,13 @@ static const struct dev_pm_ops atmel_pct - * We can have up to 16 banks. - */ - static const struct atmel_pioctrl_data atmel_sama5d2_pioctrl_data = { -- .nbanks = 4, -+ .nbanks = 4, -+ .last_bank_count = ATMEL_PIO_NPINS_PER_BANK, - }; - - static const struct atmel_pioctrl_data microchip_sama7g5_pioctrl_data = { -- .nbanks = 5, -+ .nbanks = 5, -+ .last_bank_count = 8, /* sama7g5 has only PE0 to PE7 */ - }; - - static const struct of_device_id atmel_pctrl_of_match[] = { -@@ -1025,6 +1034,11 @@ static int atmel_pinctrl_probe(struct pl - atmel_pioctrl_data = match->data; - atmel_pioctrl->nbanks = atmel_pioctrl_data->nbanks; - atmel_pioctrl->npins = atmel_pioctrl->nbanks * ATMEL_PIO_NPINS_PER_BANK; -+ /* if last bank has limited number of pins, adjust accordingly */ -+ if (atmel_pioctrl_data->last_bank_count != ATMEL_PIO_NPINS_PER_BANK) { -+ atmel_pioctrl->npins -= ATMEL_PIO_NPINS_PER_BANK; -+ atmel_pioctrl->npins += atmel_pioctrl_data->last_bank_count; -+ } - - atmel_pioctrl->reg_base = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(atmel_pioctrl->reg_base)) |