From: Bartosz Golaszewski <brgl@bgdev.pl>
To: Linus Walleij <linus.walleij@linaro.org>,
Bartosz Golaszewski <brgl@bgdev.pl>,
Andy Shevchenko <andy@kernel.org>,
Harvey Hunt <harveyhuntnexus@gmail.com>,
Paul Cercueil <paul@crapouillou.net>,
Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>
Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mtd@lists.infradead.org, linux-mips@vger.kernel.org,
Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Subject: [RFT PATCH] mtd: rawnand: ingenic: move the GPIO quirk to gpiolib-of.c
Date: Tue, 26 Sep 2023 11:06:23 +0200 [thread overview]
Message-ID: <20230926090623.35595-1-brgl@bgdev.pl> (raw)
From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
We have a special place for OF polarity quirks in gpiolib-of.c. Let's
move this over there so that it doesn't pollute the driver.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
This is an alternative to the previous patch that instead of replacing
one active-low setter with another, just moves the quirk over to
gpiolib-of.c
drivers/gpio/gpiolib-of.c | 9 +++++++++
drivers/mtd/nand/raw/ingenic/ingenic_nand_drv.c | 12 ------------
2 files changed, 9 insertions(+), 12 deletions(-)
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index 5515f32cf19b..58c0bbe9d569 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -192,6 +192,15 @@ static void of_gpio_try_fixup_polarity(const struct device_node *np,
*/
{ "himax,hx8357", "gpios-reset", false },
{ "himax,hx8369", "gpios-reset", false },
+ /*
+ * The rb-gpios semantics was undocumented and qi,lb60 (along with
+ * the ingenic driver) got it wrong. The active state encodes the
+ * NAND ready state, which is high level. Since there's no signal
+ * inverter on this board, it should be active-high. Let's fix that
+ * here for older DTs so we can re-use the generic nand_gpio_waitrdy()
+ * helper, and be consistent with what other drivers do.
+ */
+ { "qi,lb60", "rb-gpios", true },
#endif
};
unsigned int i;
diff --git a/drivers/mtd/nand/raw/ingenic/ingenic_nand_drv.c b/drivers/mtd/nand/raw/ingenic/ingenic_nand_drv.c
index 6748226b8bd1..c816dc137245 100644
--- a/drivers/mtd/nand/raw/ingenic/ingenic_nand_drv.c
+++ b/drivers/mtd/nand/raw/ingenic/ingenic_nand_drv.c
@@ -380,18 +380,6 @@ static int ingenic_nand_init_chip(struct platform_device *pdev,
return ret;
}
- /*
- * The rb-gpios semantics was undocumented and qi,lb60 (along with
- * the ingenic driver) got it wrong. The active state encodes the
- * NAND ready state, which is high level. Since there's no signal
- * inverter on this board, it should be active-high. Let's fix that
- * here for older DTs so we can re-use the generic nand_gpio_waitrdy()
- * helper, and be consistent with what other drivers do.
- */
- if (of_machine_is_compatible("qi,lb60") &&
- gpiod_is_active_low(nand->busy_gpio))
- gpiod_toggle_active_low(nand->busy_gpio);
-
nand->wp_gpio = devm_gpiod_get_optional(dev, "wp", GPIOD_OUT_LOW);
if (IS_ERR(nand->wp_gpio)) {
--
2.39.2
next reply other threads:[~2023-09-26 9:06 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-26 9:06 Bartosz Golaszewski [this message]
2023-09-26 9:11 ` [RFT PATCH] mtd: rawnand: ingenic: move the GPIO quirk to gpiolib-of.c Linus Walleij
2023-09-26 9:16 ` Miquel Raynal
2023-09-26 9:26 ` Paul Cercueil
2023-09-26 11:58 ` Andy Shevchenko
2023-09-27 11:15 ` Bartosz Golaszewski
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