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Date:   Sun,  2 Apr 2017 22:42:42 +0200
From:   Paul Cercueil <paul@...pouillou.net>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Alexandre Courbot <gnurou@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Ralf Baechle <ralf@...ux-mips.org>
Cc:     Boris Brezillon <boris.brezillon@...e-electrons.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Maarten ter Huurne <maarten@...ewalker.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Paul Burton <paul.burton@...tec.com>, james.hogan@...tec.com,
        linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mips@...ux-mips.org,
        linux-mmc@...r.kernel.org, linux-mtd@...ts.infradead.org,
        linux-pwm@...r.kernel.org, linux-fbdev@...r.kernel.org,
        Paul Cercueil <paul@...pouillou.net>
Subject: [PATCH v4 12/14] fbdev: jz4740-fb: Let the pinctrl driver configure the pins

Now that the JZ4740 and similar SoCs have a pinctrl driver, we rely on
the pins being properly configured before the driver probes.

Signed-off-by: Paul Cercueil <paul@...pouillou.net>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
---
 drivers/video/fbdev/jz4740_fb.c | 104 ++--------------------------------------
 1 file changed, 3 insertions(+), 101 deletions(-)

 v2: No changes
 v3: No changes
 v4: No changes

diff --git a/drivers/video/fbdev/jz4740_fb.c b/drivers/video/fbdev/jz4740_fb.c
index 87790e9644d0..b57df83fdbd3 100644
--- a/drivers/video/fbdev/jz4740_fb.c
+++ b/drivers/video/fbdev/jz4740_fb.c
@@ -17,6 +17,7 @@
 #include <linux/module.h>
 #include <linux/mutex.h>
 #include <linux/platform_device.h>
+#include <linux/pinctrl/consumer.h>
 
 #include <linux/clk.h>
 #include <linux/delay.h>
@@ -27,7 +28,6 @@
 #include <linux/dma-mapping.h>
 
 #include <asm/mach-jz4740/jz4740_fb.h>
-#include <asm/mach-jz4740/gpio.h>
 
 #define JZ_REG_LCD_CFG		0x00
 #define JZ_REG_LCD_VSYNC	0x04
@@ -146,93 +146,6 @@ static const struct fb_fix_screeninfo jzfb_fix = {
 	.accel		= FB_ACCEL_NONE,
 };
 
-static const struct jz_gpio_bulk_request jz_lcd_ctrl_pins[] = {
-	JZ_GPIO_BULK_PIN(LCD_PCLK),
-	JZ_GPIO_BULK_PIN(LCD_HSYNC),
-	JZ_GPIO_BULK_PIN(LCD_VSYNC),
-	JZ_GPIO_BULK_PIN(LCD_DE),
-	JZ_GPIO_BULK_PIN(LCD_PS),
-	JZ_GPIO_BULK_PIN(LCD_REV),
-	JZ_GPIO_BULK_PIN(LCD_CLS),
-	JZ_GPIO_BULK_PIN(LCD_SPL),
-};
-
-static const struct jz_gpio_bulk_request jz_lcd_data_pins[] = {
-	JZ_GPIO_BULK_PIN(LCD_DATA0),
-	JZ_GPIO_BULK_PIN(LCD_DATA1),
-	JZ_GPIO_BULK_PIN(LCD_DATA2),
-	JZ_GPIO_BULK_PIN(LCD_DATA3),
-	JZ_GPIO_BULK_PIN(LCD_DATA4),
-	JZ_GPIO_BULK_PIN(LCD_DATA5),
-	JZ_GPIO_BULK_PIN(LCD_DATA6),
-	JZ_GPIO_BULK_PIN(LCD_DATA7),
-	JZ_GPIO_BULK_PIN(LCD_DATA8),
-	JZ_GPIO_BULK_PIN(LCD_DATA9),
-	JZ_GPIO_BULK_PIN(LCD_DATA10),
-	JZ_GPIO_BULK_PIN(LCD_DATA11),
-	JZ_GPIO_BULK_PIN(LCD_DATA12),
-	JZ_GPIO_BULK_PIN(LCD_DATA13),
-	JZ_GPIO_BULK_PIN(LCD_DATA14),
-	JZ_GPIO_BULK_PIN(LCD_DATA15),
-	JZ_GPIO_BULK_PIN(LCD_DATA16),
-	JZ_GPIO_BULK_PIN(LCD_DATA17),
-};
-
-static unsigned int jzfb_num_ctrl_pins(struct jzfb *jzfb)
-{
-	unsigned int num;
-
-	switch (jzfb->pdata->lcd_type) {
-	case JZ_LCD_TYPE_GENERIC_16_BIT:
-		num = 4;
-		break;
-	case JZ_LCD_TYPE_GENERIC_18_BIT:
-		num = 4;
-		break;
-	case JZ_LCD_TYPE_8BIT_SERIAL:
-		num = 3;
-		break;
-	case JZ_LCD_TYPE_SPECIAL_TFT_1:
-	case JZ_LCD_TYPE_SPECIAL_TFT_2:
-	case JZ_LCD_TYPE_SPECIAL_TFT_3:
-		num = 8;
-		break;
-	default:
-		num = 0;
-		break;
-	}
-	return num;
-}
-
-static unsigned int jzfb_num_data_pins(struct jzfb *jzfb)
-{
-	unsigned int num;
-
-	switch (jzfb->pdata->lcd_type) {
-	case JZ_LCD_TYPE_GENERIC_16_BIT:
-		num = 16;
-		break;
-	case JZ_LCD_TYPE_GENERIC_18_BIT:
-		num = 18;
-		break;
-	case JZ_LCD_TYPE_8BIT_SERIAL:
-		num = 8;
-		break;
-	case JZ_LCD_TYPE_SPECIAL_TFT_1:
-	case JZ_LCD_TYPE_SPECIAL_TFT_2:
-	case JZ_LCD_TYPE_SPECIAL_TFT_3:
-		if (jzfb->pdata->bpp == 18)
-			num = 18;
-		else
-			num = 16;
-		break;
-	default:
-		num = 0;
-		break;
-	}
-	return num;
-}
-
 /* Based on CNVT_TOHW macro from skeletonfb.c */
 static inline uint32_t jzfb_convert_color_to_hw(unsigned val,
 	struct fb_bitfield *bf)
@@ -487,8 +400,7 @@ static void jzfb_enable(struct jzfb *jzfb)
 
 	clk_prepare_enable(jzfb->ldclk);
 
-	jz_gpio_bulk_resume(jz_lcd_ctrl_pins, jzfb_num_ctrl_pins(jzfb));
-	jz_gpio_bulk_resume(jz_lcd_data_pins, jzfb_num_data_pins(jzfb));
+	pinctrl_pm_select_default_state(&jzfb->pdev->dev);
 
 	writel(0, jzfb->base + JZ_REG_LCD_STATE);
 
@@ -511,8 +423,7 @@ static void jzfb_disable(struct jzfb *jzfb)
 		ctrl = readl(jzfb->base + JZ_REG_LCD_STATE);
 	} while (!(ctrl & JZ_LCD_STATE_DISABLED));
 
-	jz_gpio_bulk_suspend(jz_lcd_ctrl_pins, jzfb_num_ctrl_pins(jzfb));
-	jz_gpio_bulk_suspend(jz_lcd_data_pins, jzfb_num_data_pins(jzfb));
+	pinctrl_pm_select_sleep_state(&jzfb->pdev->dev);
 
 	clk_disable_unprepare(jzfb->ldclk);
 }
@@ -701,9 +612,6 @@ static int jzfb_probe(struct platform_device *pdev)
 	fb->mode = NULL;
 	jzfb_set_par(fb);
 
-	jz_gpio_bulk_request(jz_lcd_ctrl_pins, jzfb_num_ctrl_pins(jzfb));
-	jz_gpio_bulk_request(jz_lcd_data_pins, jzfb_num_data_pins(jzfb));
-
 	ret = register_framebuffer(fb);
 	if (ret) {
 		dev_err(&pdev->dev, "Failed to register framebuffer: %d\n", ret);
@@ -715,9 +623,6 @@ static int jzfb_probe(struct platform_device *pdev)
 	return 0;
 
 err_free_devmem:
-	jz_gpio_bulk_free(jz_lcd_ctrl_pins, jzfb_num_ctrl_pins(jzfb));
-	jz_gpio_bulk_free(jz_lcd_data_pins, jzfb_num_data_pins(jzfb));
-
 	fb_dealloc_cmap(&fb->cmap);
 	jzfb_free_devmem(jzfb);
 err_framebuffer_release:
@@ -731,9 +636,6 @@ static int jzfb_remove(struct platform_device *pdev)
 
 	jzfb_blank(FB_BLANK_POWERDOWN, jzfb->fb);
 
-	jz_gpio_bulk_free(jz_lcd_ctrl_pins, jzfb_num_ctrl_pins(jzfb));
-	jz_gpio_bulk_free(jz_lcd_data_pins, jzfb_num_data_pins(jzfb));
-
 	fb_dealloc_cmap(&jzfb->fb->cmap);
 	jzfb_free_devmem(jzfb);
 
-- 
2.11.0

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