linux-kernel - [PATCH v1 2/5] gpio: rockchip: support GPIO_TYPE_V2

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Message-Id: <20240815071651.3645949-3-ye.zhang@rock-chips.com>
Date: Thu, 15 Aug 2024 15:16:48 +0800
From: Ye Zhang <ye.zhang@...k-chips.com>
To: linus.walleij@...aro.org,
	brgl@...ev.pl,
	heiko@...ech.de,
	linux-gpio@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Cc: linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	tao.huang@...k-chips.com,
	finley.xiao@...k-chips.com,
	tim.chen@...k-chips.com,
	elaine.zhang@...k-chips.com,
	Ye Zhang <ye.zhang@...k-chips.com>
Subject: [PATCH v1 2/5] gpio: rockchip: support GPIO_TYPE_V2_2

Support GPIO_TYPE_V2_2

Signed-off-by: Ye Zhang <ye.zhang@...k-chips.com>
---
 drivers/gpio/gpio-rockchip.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-rockchip.c b/drivers/gpio/gpio-rockchip.c
index 251961a876a9..b2f26a16b1f6 100644
--- a/drivers/gpio/gpio-rockchip.c
+++ b/drivers/gpio/gpio-rockchip.c
@@ -32,6 +32,7 @@
 #define GPIO_TYPE_V1		(0)           /* GPIO Version ID reserved */
 #define GPIO_TYPE_V2		(0x01000C2B)  /* GPIO Version ID 0x01000C2B */
 #define GPIO_TYPE_V2_1		(0x0101157C)  /* GPIO Version ID 0x0101157C */
+#define GPIO_TYPE_V2_2		(0x010219C8)  /* GPIO Version ID 0x010219C8 */
 
 #define GPIO_MAX_PINS	(32)
 
@@ -624,13 +625,17 @@ static void rockchip_gpio_get_ver(struct rockchip_pin_bank *bank)
 {
 	int id = readl(bank->reg_base + gpio_regs_v2.version_id);
 
-	/* If not gpio v2, that is default to v1. */
-	if (id == GPIO_TYPE_V2 || id == GPIO_TYPE_V2_1) {
+	switch (id) {
+	case GPIO_TYPE_V2:
+	case GPIO_TYPE_V2_1:
+	case GPIO_TYPE_V2_2:
 		bank->gpio_regs = &gpio_regs_v2;
 		bank->gpio_type = GPIO_TYPE_V2;
-	} else {
+		break;
+	default:
 		bank->gpio_regs = &gpio_regs_v1;
 		bank->gpio_type = GPIO_TYPE_V1;
+		pr_info("Note: Use default GPIO_TYPE_V1!\n");
 	}
 }
 
-- 
2.34.1