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IronPort-SDR: EfhMhASO24UbhZMuUOmS+buAgVdrppmUaF0CYAREAOb7+A1EiyC3sO2A6ppK8uckzJf/fXvoQd w0XC4jPUEuYumP3p0llLQtWyzrlBI+SCxwflA7aH9y+E+4UbgRJb9HqTGMw1SAIPt21LieOaPw CU0/bvfv/klyb7tUfZoh+5jxYUifDsk3DJSm6wZf9xnw6J660LdyO6SbzDKBZqoX9Bwop/xXMa izzvykssVAHHg8Js9abglQJ+ofYPx8JpnGp4z7upOiYGUceIAaAITkzoro4dACUMc/lEQ0gGd+ d/LsWyZ1UUpVXNCx9kuWe0q4 X-IronPort-AV: E=Sophos;i="5.84,337,1620716400"; d="scan'208";a="140927386" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa1.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 20 Aug 2021 02:30:35 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.14; Fri, 20 Aug 2021 02:30:34 -0700 Received: from m18063-ThinkPad-T460p.mchp-main.com (10.10.115.15) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server id 15.1.2176.14 via Frontend Transport; Fri, 20 Aug 2021 02:30:29 -0700 From: Claudiu Beznea To: , , , , CC: , , , , Claudiu Beznea Subject: [PATCH v3 2/4] mmc: pwrseq: sd8787: add support for wilc1000 Date: Fri, 20 Aug 2021 12:28:01 +0300 Message-ID: <20210820092803.78523-3-claudiu.beznea@microchip.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210820092803.78523-1-claudiu.beznea@microchip.com> References: <20210820092803.78523-1-claudiu.beznea@microchip.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210820_023037_829659_AD9542E1 X-CRM114-Status: GOOD ( 13.58 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 --- 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);