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Thu, 11 Apr 2019 02:30:33 -0700 (PDT) From: Bartosz Golaszewski To: Sekhar Nori , Kevin Hilman , Alan Stern , Greg Kroah-Hartman Subject: [PATCH v4 4/6] ARM: davinci: omapl138-hawk: add a fixed regulator for ohci-da8xx Date: Thu, 11 Apr 2019 11:30:22 +0200 Message-Id: <20190411093024.23555-5-brgl@bgdev.pl> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190411093024.23555-1-brgl@bgdev.pl> References: <20190411093024.23555-1-brgl@bgdev.pl> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190411_023036_286484_79C1EA9B X-CRM114-Status: GOOD ( 13.91 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Bartosz Golaszewski , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Bartosz Golaszewski Instead of directly using the vbus GPIO we should model it as a fixed regulator. Add all necessary fix-ups for the regulator to be registered and configure the vbus GPIO as its enable pin. Signed-off-by: Bartosz Golaszewski --- arch/arm/mach-davinci/board-omapl138-hawk.c | 49 +++++++++++++++++++-- 1 file changed, 46 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-davinci/board-omapl138-hawk.c b/arch/arm/mach-davinci/board-omapl138-hawk.c index e244c8648594..db177a6a7e48 100644 --- a/arch/arm/mach-davinci/board-omapl138-hawk.c +++ b/arch/arm/mach-davinci/board-omapl138-hawk.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include @@ -298,15 +299,50 @@ static const short da850_hawk_usb11_pins[] = { -1 }; -static struct gpiod_lookup_table hawk_usb_gpio_lookup = { +static struct regulator_consumer_supply hawk_usb_supplies[] = { + REGULATOR_SUPPLY("vbus", NULL), +}; + +static struct regulator_init_data hawk_usb_vbus_data = { + .consumer_supplies = hawk_usb_supplies, + .num_consumer_supplies = ARRAY_SIZE(hawk_usb_supplies), +}; + +static struct fixed_voltage_config hawk_usb_vbus = { + .supply_name = "vbus", + .microvolts = 3300000, + .init_data = &hawk_usb_vbus_data, +}; + +static struct platform_device hawk_usb_vbus_device = { + .name = "reg-fixed-voltage", + .id = 0, + .dev = { + .platform_data = &hawk_usb_vbus, + }, +}; + +static struct gpiod_lookup_table hawk_usb_oc_gpio_lookup = { .dev_id = "ohci-da8xx", .table = { - GPIO_LOOKUP("davinci_gpio", DA850_USB1_VBUS_PIN, "vbus", 0), GPIO_LOOKUP("davinci_gpio", DA850_USB1_OC_PIN, "oc", 0), { } }, }; +static struct gpiod_lookup_table hawk_usb_vbus_gpio_lookup = { + .dev_id = "reg-fixed-voltage.0", + .table = { + GPIO_LOOKUP("davinci_gpio", DA850_USB1_VBUS_PIN, NULL, 0), + { } + }, +}; + +static struct gpiod_lookup_table *hawk_usb_gpio_lookups[] = { + &hawk_usb_oc_gpio_lookup, + &hawk_usb_vbus_gpio_lookup, +}; + static struct da8xx_ohci_root_hub omapl138_hawk_usb11_pdata = { /* TPS2087 switch @ 5V */ .potpgt = (3 + 1) / 2, /* 3 ms max */ @@ -327,12 +363,19 @@ static __init void omapl138_hawk_usb_init(void) pr_warn("%s: USB PHY CLK registration failed: %d\n", __func__, ret); + gpiod_add_lookup_tables(hawk_usb_gpio_lookups, + ARRAY_SIZE(hawk_usb_gpio_lookups)); + ret = da8xx_register_usb_phy(); if (ret) pr_warn("%s: USB PHY registration failed: %d\n", __func__, ret); - gpiod_add_lookup_table(&hawk_usb_gpio_lookup); + ret = platform_device_register(&hawk_usb_vbus_device); + if (ret) { + pr_warn("%s: Unable to register the vbus supply\n", __func__); + return; + } ret = da8xx_register_usb11(&omapl138_hawk_usb11_pdata); if (ret) -- 2.21.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel