diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2018-09-23 08:33:20 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2018-10-08 11:40:43 +0200 |
| commit | b007c4cec8ca169ce091600212b69e077ac0bd5d (patch) | |
| tree | 3fd19ed331f29d50c7f3104a416283020398322d /drivers/mmc/host/sdhci-spear.c | |
| parent | 9ef986a697c6d733d86e76d9870b4f1f60512b7a (diff) | |
mmc: sdhci: spear: Use the slot GPIO descriptor
This driver is complicating things for no reason: the "cd"
GPIO can easily be retrieved from the device tree if present
using just mmc_gpiod_request_cd(), which will fetch the
descriptor from the device tree using the standard binding
just fine.
Cc: Viresh Kumar <vireshk@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/sdhci-spear.c')
| -rw-r--r-- | drivers/mmc/host/sdhci-spear.c | 33 |
1 files changed, 5 insertions, 28 deletions
diff --git a/drivers/mmc/host/sdhci-spear.c b/drivers/mmc/host/sdhci-spear.c index 9247d51f2eed..916b5b09c3d1 100644 --- a/drivers/mmc/host/sdhci-spear.c +++ b/drivers/mmc/host/sdhci-spear.c @@ -15,13 +15,11 @@ #include <linux/clk.h> #include <linux/delay.h> -#include <linux/gpio.h> #include <linux/highmem.h> #include <linux/module.h> #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/of.h> -#include <linux/of_gpio.h> #include <linux/platform_device.h> #include <linux/pm.h> #include <linux/slab.h> @@ -32,7 +30,6 @@ struct spear_sdhci { struct clk *clk; - int card_int_gpio; }; /* sdhci ops */ @@ -43,18 +40,6 @@ static const struct sdhci_ops sdhci_pltfm_ops = { .set_uhs_signaling = sdhci_set_uhs_signaling, }; -static void sdhci_probe_config_dt(struct device_node *np, - struct spear_sdhci *host) -{ - int cd_gpio; - - cd_gpio = of_get_named_gpio(np, "cd-gpios", 0); - if (!gpio_is_valid(cd_gpio)) - cd_gpio = -1; - - host->card_int_gpio = cd_gpio; -} - static int sdhci_probe(struct platform_device *pdev) { struct sdhci_host *host; @@ -109,21 +94,13 @@ static int sdhci_probe(struct platform_device *pdev) dev_dbg(&pdev->dev, "Error setting desired clk, clk=%lu\n", clk_get_rate(sdhci->clk)); - sdhci_probe_config_dt(pdev->dev.of_node, sdhci); /* - * It is optional to use GPIOs for sdhci card detection. If - * sdhci->card_int_gpio < 0, then use original sdhci lines otherwise - * GPIO lines. We use the built-in GPIO support for this. + * It is optional to use GPIOs for sdhci card detection. If we + * find a descriptor using slot GPIO, we use it. */ - if (sdhci->card_int_gpio >= 0) { - ret = mmc_gpio_request_cd(host->mmc, sdhci->card_int_gpio, 0); - if (ret < 0) { - dev_dbg(&pdev->dev, - "failed to request card-detect gpio%d\n", - sdhci->card_int_gpio); - goto disable_clk; - } - } + ret = mmc_gpiod_request_cd(host->mmc, "cd", 0, false, 0, NULL); + if (ret == -EPROBE_DEFER) + goto disable_clk; ret = sdhci_add_host(host); if (ret) |