From b2832b96fcf50270d69dae3f95bf14949ff638e4 Mon Sep 17 00:00:00 2001 From: Claudiu Beznea Date: Fri, 20 Aug 2021 12:28:01 +0300 Subject: mmc: pwrseq: sd8787: add support for wilc1000 Add new compatible for wilc1000 devices and specify the delay in .data member of struct of_device_id. WILC1000, WILC3000 devices needs a minimum of 5ms delay b/w reset and power lines. Signed-off-by: Claudiu Beznea Link: https://lore.kernel.org/r/20210820092803.78523-3-claudiu.beznea@microchip.com Signed-off-by: Ulf Hansson --- drivers/mmc/core/pwrseq_sd8787.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/core/pwrseq_sd8787.c b/drivers/mmc/core/pwrseq_sd8787.c index 68a826f1c0a1..264e48067af2 100644 --- a/drivers/mmc/core/pwrseq_sd8787.c +++ b/drivers/mmc/core/pwrseq_sd8787.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include #include @@ -27,6 +28,7 @@ struct mmc_pwrseq_sd8787 { struct mmc_pwrseq pwrseq; struct gpio_desc *reset_gpio; struct gpio_desc *pwrdn_gpio; + u32 reset_pwrdwn_delay_ms; }; #define to_pwrseq_sd8787(p) container_of(p, struct mmc_pwrseq_sd8787, pwrseq) @@ -37,7 +39,7 @@ static void mmc_pwrseq_sd8787_pre_power_on(struct mmc_host *host) gpiod_set_value_cansleep(pwrseq->reset_gpio, 1); - msleep(300); + msleep(pwrseq->reset_pwrdwn_delay_ms); gpiod_set_value_cansleep(pwrseq->pwrdn_gpio, 1); } @@ -55,7 +57,8 @@ static const struct mmc_pwrseq_ops mmc_pwrseq_sd8787_ops = { }; static const struct of_device_id mmc_pwrseq_sd8787_of_match[] = { - { .compatible = "mmc-pwrseq-sd8787",}, + { .compatible = "mmc-pwrseq-sd8787", .data = (void *)300 }, + { .compatible = "mmc-pwrseq-wilc1000", .data = (void *)5 }, {/* sentinel */}, }; MODULE_DEVICE_TABLE(of, mmc_pwrseq_sd8787_of_match); @@ -64,11 +67,15 @@ static int mmc_pwrseq_sd8787_probe(struct platform_device *pdev) { struct mmc_pwrseq_sd8787 *pwrseq; struct device *dev = &pdev->dev; + const struct of_device_id *match; pwrseq = devm_kzalloc(dev, sizeof(*pwrseq), GFP_KERNEL); if (!pwrseq) return -ENOMEM; + match = of_match_node(mmc_pwrseq_sd8787_of_match, pdev->dev.of_node); + pwrseq->reset_pwrdwn_delay_ms = (u32)match->data; + pwrseq->pwrdn_gpio = devm_gpiod_get(dev, "powerdown", GPIOD_OUT_LOW); if (IS_ERR(pwrseq->pwrdn_gpio)) return PTR_ERR(pwrseq->pwrdn_gpio); -- cgit v1.2.1