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[109.210.96.69]) by smtp.gmail.com with ESMTPSA id p6sm40652484wrq.97.2019.07.22.06.44.43 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Mon, 22 Jul 2019 06:44:43 -0700 (PDT) From: Bartosz Golaszewski To: Sekhar Nori , Kevin Hilman , Bartlomiej Zolnierkiewicz , David Lechner , Linus Walleij Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-fbdev@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH v2 5/9] ARM: davinci: da850-evm: switch to using a fixed regulator for lcdc Date: Mon, 22 Jul 2019 15:44:19 +0200 Message-Id: <20190722134423.26555-6-brgl@bgdev.pl> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190722134423.26555-1-brgl@bgdev.pl> References: <20190722134423.26555-1-brgl@bgdev.pl> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Bartosz Golaszewski Now that the da8xx fbdev driver supports power control with an actual regulator, switch to using a fixed power supply for da850-evm. Signed-off-by: Bartosz Golaszewski Reviewed-by: Linus Walleij --- arch/arm/mach-davinci/board-da850-evm.c | 62 ++++++++++++++++++------- 1 file changed, 44 insertions(+), 18 deletions(-) diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c index ac05d4838f1e..5b3549f1236c 100644 --- a/arch/arm/mach-davinci/board-da850-evm.c +++ b/arch/arm/mach-davinci/board-da850-evm.c @@ -803,12 +803,6 @@ static const short da850_evm_mmcsd0_pins[] __initconst = { -1 }; -static void da850_panel_power_ctrl(int val) -{ - /* lcd power */ - gpio_set_value(DA850_LCD_PWR_PIN, val); -} - static struct property_entry da850_lcd_backlight_props[] = { PROPERTY_ENTRY_BOOL("default-on"), { } @@ -828,28 +822,61 @@ static const struct platform_device_info da850_lcd_backlight_info = { .properties = da850_lcd_backlight_props, }; +static struct regulator_consumer_supply da850_lcd_supplies[] = { + REGULATOR_SUPPLY("lcd", NULL), +}; + +static struct regulator_init_data da850_lcd_supply_data = { + .consumer_supplies = da850_lcd_supplies, + .num_consumer_supplies = ARRAY_SIZE(da850_lcd_supplies), + .constraints = { + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + }, +}; + +static struct fixed_voltage_config da850_lcd_supply = { + .supply_name = "lcd", + .microvolts = 33000000, + .init_data = &da850_lcd_supply_data, +}; + +static struct platform_device da850_lcd_supply_device = { + .name = "reg-fixed-voltage", + .id = 1, /* Dummy fixed regulator is 0 */ + .dev = { + .platform_data = &da850_lcd_supply, + }, +}; + +static struct gpiod_lookup_table da850_lcd_supply_gpio_table = { + .dev_id = "reg-fixed-voltage.1", + .table = { + GPIO_LOOKUP("davinci_gpio", DA850_LCD_PWR_PIN, NULL, 0), + { } + }, +}; + +static struct gpiod_lookup_table *da850_lcd_gpio_lookups[] = { + &da850_lcd_backlight_gpio_table, + &da850_lcd_supply_gpio_table, +}; + static int da850_lcd_hw_init(void) { struct platform_device *backlight; int status; - gpiod_add_lookup_table(&da850_lcd_backlight_gpio_table); + gpiod_add_lookup_tables(da850_lcd_gpio_lookups, + ARRAY_SIZE(da850_lcd_gpio_lookups)); + backlight = platform_device_register_full(&da850_lcd_backlight_info); if (IS_ERR(backlight)) return PTR_ERR(backlight); - status = gpio_request(DA850_LCD_PWR_PIN, "lcd pwr"); - if (status < 0) + status = platform_device_register(&da850_lcd_supply_device); + if (status) return status; - gpio_direction_output(DA850_LCD_PWR_PIN, 0); - - /* Switch off panel power */ - da850_panel_power_ctrl(0); - - /* Switch on panel power */ - da850_panel_power_ctrl(1); - return 0; } @@ -1459,7 +1486,6 @@ static __init void da850_evm_init(void) if (ret) pr_warn("%s: LCD initialization failed: %d\n", __func__, ret); - sharp_lk043t1dg01_pdata.panel_power_ctrl = da850_panel_power_ctrl, ret = da8xx_register_lcdc(&sharp_lk043t1dg01_pdata); if (ret) pr_warn("%s: LCDC registration failed: %d\n", __func__, ret); -- 2.21.0