From patchwork Wed Oct 4 14:56:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Duje_Mihanovi=C4=87?= X-Patchwork-Id: 13408864 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3DE2F17758 for ; Wed, 4 Oct 2023 14:56:49 +0000 (UTC) Received: from mx.skole.hr (mx1.hosting.skole.hr [161.53.165.185]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 127AE116; Wed, 4 Oct 2023 07:56:46 -0700 (PDT) Received: from mx1.hosting.skole.hr (localhost.localdomain [127.0.0.1]) by mx.skole.hr (mx.skole.hr) with ESMTP id 531B184CC2; Wed, 4 Oct 2023 16:56:45 +0200 (CEST) From: =?utf-8?q?Duje_Mihanovi=C4=87?= Date: Wed, 04 Oct 2023 16:56:25 +0200 Subject: [PATCH RFC v5 1/6] ARM: pxa: Convert Spitz OHCI to GPIO descriptors Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20231004-pxa-gpio-v5-1-d99ae6fceea8@skole.hr> References: <20231004-pxa-gpio-v5-0-d99ae6fceea8@skole.hr> In-Reply-To: <20231004-pxa-gpio-v5-0-d99ae6fceea8@skole.hr> To: Daniel Mack , Haojian Zhuang , Robert Jarzmik , Russell King , Alan Stern , Greg Kroah-Hartman , Linus Walleij , Bartosz Golaszewski , Andy Shevchenko , Dmitry Torokhov , Mark Brown Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-gpio@vger.kernel.org, linux-input@vger.kernel.org, linux-spi@vger.kernel.org, =?utf-8?q?Duje_Mih?= =?utf-8?q?anovi=C4=87?= X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=2820; i=duje.mihanovic@skole.hr; h=from:subject:message-id; bh=IagpUfl05KzWJgAFQ7XITp57I+E1tyGy7fQDYzzbJ2k=; b=owEBbQKS/ZANAwAIAZoRnrBCLZbhAcsmYgBlHX0kG/DC4k30yZXnE7oaivDMozeLKHED8Qu3Q mjJqmvQ/gaJAjMEAAEIAB0WIQRT351NnD/hEPs2LXiaEZ6wQi2W4QUCZR19JAAKCRCaEZ6wQi2W 4YubD/4gfvj8cdP8yests4zu+KCODZKOjEqvIwkuQfz0lQPokL7xOQ6EMElDljMK/mAPtya0IhG /3RBq5vS6GCr6oUNwye3Lwh2S4AwypeEbb3i5Gfa2mEQZNHDIoBeFYPuoOy8u+e3S1Hbad0ficb fuE3KNLEoyOtwtE/WfvEsfarDlA5Iwk+7t1qXsADTgLGpnHcr6dTOCCyPsXxTX7Dd0c/nrmCJ2A 2wVMLT0IGhEc5fJl/7AVJBbDAS3L6QrppWIJNG5hYHPDCW7alJElTe6uRxDP0CvBOg8SFo6+DI/ VjusHA6jCS4qyey6RV74w9XxyiD6pmUSj3gI/6V5sCg9reVSvMlF/QGCkjGgDIQLHsIIODvQggl DvofcFkGKTphh1V4hTX6LCPcfhgB3DvlQlEO6O14EOKjTuMDBIE0TuPrLBg6nJczTyCRvlwBegA ysnxGp6JQ8/SWj8LfGLVnft4Cq4iqUlhP6BXASdq7Buij3VaNPHflHoJxDpDeB4FsjoAgzyMpLd dl4cGyhJsjVirx6l18Hi9Q1mz386kafNCJj8dEC7rwxmEDMZoDjWlG2QSoGoyCHFaK7HQGIHo9h huDdzbiHQ3rgJq3vCW0lqCPR1pX8dIJiSAwHKMgpuGpnrAQOpSbKF+ExHLMEM4jnXs+nXrvEwJ+ CaBT9JL511yjeAQ== X-Developer-Key: i=duje.mihanovic@skole.hr; a=openpgp; fpr=53DF9D4D9C3FE110FB362D789A119EB0422D96E1 X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Sharp's Spitz board still uses the legacy GPIO interface for controlling a GPIO pin related to the USB host controller. Convert this function to use the new GPIO descriptor interface. Reviewed-by: Linus Walleij Signed-off-by: Duje Mihanović --- arch/arm/mach-pxa/spitz.c | 13 ++++++------- drivers/usb/host/ohci-pxa27x.c | 7 +++++++ 2 files changed, 13 insertions(+), 7 deletions(-) diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c index cc691b199429..535e2b2e997b 100644 --- a/arch/arm/mach-pxa/spitz.c +++ b/arch/arm/mach-pxa/spitz.c @@ -649,23 +649,22 @@ static inline void spitz_mmc_init(void) {} * USB Host ******************************************************************************/ #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) +GPIO_LOOKUP_SINGLE(spitz_usb_host_gpio_table, "pxa27x-ohci", "gpio-pxa", + SPITZ_GPIO_USB_HOST, "usb-host", GPIO_ACTIVE_LOW); + static int spitz_ohci_init(struct device *dev) { - int err; - - err = gpio_request(SPITZ_GPIO_USB_HOST, "USB_HOST"); - if (err) - return err; + gpiod_add_lookup_table(&spitz_usb_host_gpio_table); /* Only Port 2 is connected, setup USB Port 2 Output Control Register */ UP2OCR = UP2OCR_HXS | UP2OCR_HXOE | UP2OCR_DPPDE | UP2OCR_DMPDE; - return gpio_direction_output(SPITZ_GPIO_USB_HOST, 1); + return 0; } static void spitz_ohci_exit(struct device *dev) { - gpio_free(SPITZ_GPIO_USB_HOST); + gpiod_remove_lookup_table(&spitz_usb_host_gpio_table); } static struct pxaohci_platform_data spitz_ohci_platform_data = { diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c index 357d9aee38a3..876842b940c0 100644 --- a/drivers/usb/host/ohci-pxa27x.c +++ b/drivers/usb/host/ohci-pxa27x.c @@ -121,6 +121,7 @@ struct pxa27x_ohci { void __iomem *mmio_base; struct regulator *vbus[3]; bool vbus_enabled[3]; + struct gpio_desc *usb_host; }; #define to_pxa27x_ohci(hcd) (struct pxa27x_ohci *)(hcd_to_ohci(hcd)->priv) @@ -447,6 +448,10 @@ static int ohci_hcd_pxa27x_probe(struct platform_device *pdev) pxa_ohci = to_pxa27x_ohci(hcd); pxa_ohci->clk = usb_clk; pxa_ohci->mmio_base = (void __iomem *)hcd->regs; + pxa_ohci->usb_host = gpiod_get_optional(&pdev->dev, "usb-host", GPIOD_OUT_LOW); + if (IS_ERR(pxa_ohci->usb_host)) + return dev_err_probe(&pdev->dev, PTR_ERR(pxa_ohci->usb_host), + "failed to get USB host GPIO\n"); for (i = 0; i < 3; ++i) { char name[6]; @@ -512,6 +517,8 @@ static void ohci_hcd_pxa27x_remove(struct platform_device *pdev) for (i = 0; i < 3; ++i) pxa27x_ohci_set_vbus_power(pxa_ohci, i, false); + gpiod_put(pxa_ohci->usb_host); + usb_put_hcd(hcd); } From patchwork Wed Oct 4 14:56:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Duje_Mihanovi=C4=87?= X-Patchwork-Id: 13408865 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 360A315EBA for ; Wed, 4 Oct 2023 14:56:49 +0000 (UTC) Received: from mx.skole.hr (mx1.hosting.skole.hr [161.53.165.185]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BFFB3112; Wed, 4 Oct 2023 07:56:46 -0700 (PDT) Received: from mx1.hosting.skole.hr (localhost.localdomain [127.0.0.1]) by mx.skole.hr (mx.skole.hr) with ESMTP id 8504C84CA0; Wed, 4 Oct 2023 16:56:44 +0200 (CEST) From: =?utf-8?q?Duje_Mihanovi=C4=87?= Date: Wed, 04 Oct 2023 16:56:26 +0200 Subject: [PATCH RFC v5 2/6] ARM: pxa: Convert Spitz LEDs to GPIO descriptors Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20231004-pxa-gpio-v5-2-d99ae6fceea8@skole.hr> References: <20231004-pxa-gpio-v5-0-d99ae6fceea8@skole.hr> In-Reply-To: <20231004-pxa-gpio-v5-0-d99ae6fceea8@skole.hr> To: Daniel Mack , Haojian Zhuang , Robert Jarzmik , Russell King , Alan Stern , Greg Kroah-Hartman , Linus Walleij , Bartosz Golaszewski , Andy Shevchenko , Dmitry Torokhov , Mark Brown Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-gpio@vger.kernel.org, linux-input@vger.kernel.org, linux-spi@vger.kernel.org, =?utf-8?q?Duje_Mih?= =?utf-8?q?anovi=C4=87?= X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1871; i=duje.mihanovic@skole.hr; h=from:subject:message-id; bh=DE2PEskLXScJBG6OV6aN0l1pySPm6nNQ06il8QEoR7s=; b=owEBbQKS/ZANAwAIAZoRnrBCLZbhAcsmYgBlHX0kALPHlN4oJn6kZo3KSvCEzLz38DVYdz/Ba cdGlUtMoGCJAjMEAAEIAB0WIQRT351NnD/hEPs2LXiaEZ6wQi2W4QUCZR19JAAKCRCaEZ6wQi2W 4WtUEACCiGTLN1AbQqVrfDK7Y56hTkXDQVt4zLo7s/AxU5qOIFFW9Rk9uL1rx6av9foW4enZRUC /AN2ZqEM2pS9l3ZIHH2CmIJD7i68hB1oW/W2C++qIoTQfreneKfudMBMH4Km9wYhTZDjIPbJ9I6 pe/osql79J6vMKdOcReaQ3ZxMOUxtyTYNZMdRuwSmk7ZeNiJP1VssDlANf2N1LYg+caJ3NwB+cp NVsFa5ma1n/Z3jaFyBSxcAFXmdc0zn/QjRUxpCyYToikVRPax3QXd1aMdlJEKFtGeg82P/EqmU6 WO+tKEqsdlLc+QsEyr1/qhkGWKmIHh63sNuSeke62Huofiier20EVS8GWa68VvqW79zJ9+xlLrn OAN37lpWzMIGw6C1z75RJUM82VXYe6ab/wP4i88mtebKkdlJIKungAtsUIAzXXtpU15Jd5y2VLB 0tAt0aUgFfXEVO8a/W0XTcerFNpR32EQCFz32uT6k6gUkrYSm5FM5Dbpg2NqzOzBcKO7bUnzYA5 og84IkURN4x910DHcL8P2gdaCYf4XEVyjYO8dVHkLCGp4elHUlMUlzB+tNUHTZZs9lGNmVGAdFz IamCDlLQBCwmjSizLCo77nnqiipo+DSAzwSs/TqLfhd032qT6lzX7uPandRdFfz/nGHmVmB2dqV O74X1KQos5QWDzw== X-Developer-Key: i=duje.mihanovic@skole.hr; a=openpgp; fpr=53DF9D4D9C3FE110FB362D789A119EB0422D96E1 X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Sharp's Spitz board still uses the legacy GPIO interface for configuring its two onboard LEDs. Convert them to use the GPIO descriptor interface. Reviewed-by: Linus Walleij Signed-off-by: Duje Mihanović --- arch/arm/mach-pxa/spitz.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c index 535e2b2e997b..b6a4085e9fb0 100644 --- a/arch/arm/mach-pxa/spitz.c +++ b/arch/arm/mach-pxa/spitz.c @@ -452,16 +452,25 @@ static inline void spitz_keys_init(void) {} * LEDs ******************************************************************************/ #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE) +static struct gpiod_lookup_table spitz_led_gpio_table = { + .dev_id = "leds-gpio", + .table = { + GPIO_LOOKUP_IDX("pxa-gpio", SPITZ_GPIO_LED_ORANGE, NULL, 0, + GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX("pxa-gpio", SPITZ_GPIO_LED_GREEN, NULL, 1, + GPIO_ACTIVE_HIGH), + { } + } +}; + static struct gpio_led spitz_gpio_leds[] = { { .name = "spitz:amber:charge", .default_trigger = "sharpsl-charge", - .gpio = SPITZ_GPIO_LED_ORANGE, }, { .name = "spitz:green:hddactivity", .default_trigger = "disk-activity", - .gpio = SPITZ_GPIO_LED_GREEN, }, }; @@ -480,7 +489,12 @@ static struct platform_device spitz_led_device = { static void __init spitz_leds_init(void) { + gpiod_add_lookup_table(&spitz_led_gpio_table); platform_device_register(&spitz_led_device); + spitz_gpio_leds[0].gpiod = gpiod_get_index(&spitz_led_device.dev, + NULL, 0, GPIOD_ASIS); + spitz_gpio_leds[1].gpiod = gpiod_get_index(&spitz_led_device.dev, + NULL, 1, GPIOD_ASIS); } #else static inline void spitz_leds_init(void) {} From patchwork Wed Oct 4 14:56:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Duje_Mihanovi=C4=87?= X-Patchwork-Id: 13408866 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 42C8C18B1C for ; Wed, 4 Oct 2023 14:56:49 +0000 (UTC) Received: from mx.skole.hr (mx1.hosting.skole.hr [161.53.165.185]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 124B1114; Wed, 4 Oct 2023 07:56:46 -0700 (PDT) Received: from mx1.hosting.skole.hr (localhost.localdomain [127.0.0.1]) by mx.skole.hr (mx.skole.hr) with ESMTP id 4820184CB4; Wed, 4 Oct 2023 16:56:45 +0200 (CEST) From: =?utf-8?q?Duje_Mihanovi=C4=87?= Date: Wed, 04 Oct 2023 16:56:27 +0200 Subject: [PATCH RFC v5 3/6] ARM: pxa: Convert Spitz CF power control to GPIO descriptors Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20231004-pxa-gpio-v5-3-d99ae6fceea8@skole.hr> References: <20231004-pxa-gpio-v5-0-d99ae6fceea8@skole.hr> In-Reply-To: <20231004-pxa-gpio-v5-0-d99ae6fceea8@skole.hr> To: Daniel Mack , Haojian Zhuang , Robert Jarzmik , Russell King , Alan Stern , Greg Kroah-Hartman , Linus Walleij , Bartosz Golaszewski , Andy Shevchenko , Dmitry Torokhov , Mark Brown Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-gpio@vger.kernel.org, linux-input@vger.kernel.org, linux-spi@vger.kernel.org, =?utf-8?q?Duje_Mih?= =?utf-8?q?anovi=C4=87?= X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=2214; i=duje.mihanovic@skole.hr; h=from:subject:message-id; bh=KS0wJeQAKLB5dKzgUIGP98I3G2fGCey57KOguPJsj3Y=; b=owEBbQKS/ZANAwAIAZoRnrBCLZbhAcsmYgBlHX0k0eLl93XWJ77A4HcpvvnTW6rw5IUEBVaZK 9G4+btriQmJAjMEAAEIAB0WIQRT351NnD/hEPs2LXiaEZ6wQi2W4QUCZR19JAAKCRCaEZ6wQi2W 4al3D/9nKmO5AkDvEj4Dgn62yLO4LY2q11bFkySNthbUGi079W8qdL5XjpM4hcehCzuWt9+lHJX ojMd3uCWUDkH0TV+3/IHseAqc45tyqUW+3NuQmQg8w+Lz57z10XbQ+fW6cL2gxtAFK82IJ6XyE/ i8AvmwKFtKIn7Ep4I1wH5q634InRqBZ1iAJqnKd4v9QJTz9yiUNYxQkTybIrPlknUl8325rvpvI y9ZsfIId1Cqw/eTMHocDabeCEaX0sUX4RA2HGnlAReo7vCD+O0inZlg8HgP+qFEp13Tt2De+osJ aC5b+tUDxloW0X0ElXa+GHqqyG/eySgrTTl1Jl3A85BWpLY8eZnEGa9wedRFyAcohXorI/FktAt jT5tpeHTAIp3bsVKzVID7NmDaqpB8bwDFVVY1AO9l6YKnLev+/H19T8rmb6QAQe4PnUdKW07yrk 0FMMig70Z4OVtpUVBOqXeZEgd8/XkOMXpfydjhHhP3w8dvdus8DuihfmLq/aA6/blYGaog9bwgE LWvYMwKLILD2ztenOD5GCtV13nZyH7D4u8g/aI3dl/hhUCOZZDzfG1cZsY3DvF6t3Da12Za5Str z2CDNRKEmWBEZgzKM+GX6m1MIBxaxB1TYeP995KTO+bub5sr+/VRXMUiysxlO5MW/3KLzjymK0I 5pV4u+cS4Gvsg9A== X-Developer-Key: i=duje.mihanovic@skole.hr; a=openpgp; fpr=53DF9D4D9C3FE110FB362D789A119EB0422D96E1 X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Sharp's Spitz board still uses the legacy GPIO interface for controlling the power supply to its CF and SD card slots. Convert it to use the GPIO descriptor interface. Acked-by: Linus Walleij Signed-off-by: Duje Mihanović Reviewed-by: Bartosz Golaszewski --- arch/arm/mach-pxa/spitz.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c index b6a4085e9fb0..965354e64c68 100644 --- a/arch/arm/mach-pxa/spitz.c +++ b/arch/arm/mach-pxa/spitz.c @@ -133,6 +133,10 @@ static unsigned long spitz_pin_config[] __initdata = { * Scoop GPIO expander ******************************************************************************/ #if defined(CONFIG_SHARP_SCOOP) || defined(CONFIG_SHARP_SCOOP_MODULE) +GPIO_LOOKUP_SINGLE(spitz_card_pwr_ctrl_gpio_table, "pxa2xx-mci.0", + "sharp-scoop", SPITZ_GPIO_CF_POWER, "cf_power", + GPIO_ACTIVE_HIGH); + /* SCOOP Device #1 */ static struct resource spitz_scoop_1_resources[] = { [0] = { @@ -190,6 +194,7 @@ struct platform_device spitz_scoop_2_device = { static void __init spitz_scoop_init(void) { platform_device_register(&spitz_scoop_1_device); + gpiod_add_lookup_table(&spitz_card_pwr_ctrl_gpio_table); /* Akita doesn't have the second SCOOP chip */ if (!machine_is_akita()) @@ -201,9 +206,18 @@ static void __maybe_unused spitz_card_pwr_ctrl(uint8_t enable, uint8_t new_cpr) { unsigned short cpr; unsigned long flags; + struct gpio_desc *cf_power; + + cf_power = gpiod_get(&pxa_device_mci.dev, "cf_power", GPIOD_ASIS); + if (IS_ERR(cf_power)) { + dev_err(&pxa_device_mci.dev, + "failed to get power control GPIO with %ld\n", + PTR_ERR(cf_power)); + return; + } if (new_cpr & 0x7) { - gpio_set_value(SPITZ_GPIO_CF_POWER, 1); + gpiod_direction_output(cf_power, 1); mdelay(5); } @@ -222,8 +236,10 @@ static void __maybe_unused spitz_card_pwr_ctrl(uint8_t enable, uint8_t new_cpr) if (!(cpr & 0x7)) { mdelay(1); - gpio_set_value(SPITZ_GPIO_CF_POWER, 0); + gpiod_direction_output(cf_power, 0); } + + gpiod_put(cf_power); } #else From patchwork Wed Oct 4 14:56:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Duje_Mihanovi=C4=87?= X-Patchwork-Id: 13408868 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6B3EB18E0E for ; Wed, 4 Oct 2023 14:56:51 +0000 (UTC) Received: from mx.skole.hr (mx2.hosting.skole.hr [161.53.165.186]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BC7B4BF; Wed, 4 Oct 2023 07:56:47 -0700 (PDT) Received: from mx2.hosting.skole.hr (localhost.localdomain [127.0.0.1]) by mx.skole.hr (mx.skole.hr) with ESMTP id 3DC5386058; Wed, 4 Oct 2023 16:56:46 +0200 (CEST) From: =?utf-8?q?Duje_Mihanovi=C4=87?= Date: Wed, 04 Oct 2023 16:56:28 +0200 Subject: [PATCH RFC v5 4/6] ARM: pxa: Convert reset driver to GPIO descriptors Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20231004-pxa-gpio-v5-4-d99ae6fceea8@skole.hr> References: <20231004-pxa-gpio-v5-0-d99ae6fceea8@skole.hr> In-Reply-To: <20231004-pxa-gpio-v5-0-d99ae6fceea8@skole.hr> To: Daniel Mack , Haojian Zhuang , Robert Jarzmik , Russell King , Alan Stern , Greg Kroah-Hartman , Linus Walleij , Bartosz Golaszewski , Andy Shevchenko , Dmitry Torokhov , Mark Brown Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-gpio@vger.kernel.org, linux-input@vger.kernel.org, linux-spi@vger.kernel.org, =?utf-8?q?Duje_Mih?= =?utf-8?q?anovi=C4=87?= X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=3634; i=duje.mihanovic@skole.hr; h=from:subject:message-id; bh=4NSf6nRqHgAPG1WiwL6ByRFscIsi1iq6bpWNwCWgJcw=; b=owEBbQKS/ZANAwAIAZoRnrBCLZbhAcsmYgBlHX0kIsnU2yb6NQa+JLbqEVhjjtHyHIfpuJ/1/ v5rjuAT98qJAjMEAAEIAB0WIQRT351NnD/hEPs2LXiaEZ6wQi2W4QUCZR19JAAKCRCaEZ6wQi2W 4fKkD/4lUF/j1aNfU/G+nduzIgzW2XaU0QH3T8Jn+YAS/8GW1LPFo0hc6CCIAZ29U/h+WJHTIeO hC/wabf33OODy1Bz06PDGKP2DLehHtSWZ9IRQbhzal7vp27zSp4RXG0MwJe8laVLi66w7cE1aLA w1ciX7zv0QhwyryD4jE0lnFiE0qWWz+M6Y15k4CEZqV3i0SDKh/Gad1yf9XFQ0IlwulBfbjezg8 5fHnkG+S0UHGO9U89hcy0pNQxjtw77K6BHYL0L9MqpcZQeJoCRQhS141AypHEAB+dkLR3D6+LxJ 8Jrj4V6RVGAj5LDtzzhbohULqYd5OE/LrXSUk11FD/d1nwg4NUnPTFwFlKuLcnOsyiryxa6R2D6 rHxb/Pt4zXGfD2uOXPV/rGlIuq7Bv7FGVwGyCY2LqzCarYx+xynZh9kp+I9dfSY0tS1OkOFSRfj PjDDGUEXuCQmwwhZ8Y0IUKBpUqbfOVQYoM9VDWfIyvRk1H+qilvOrZ5Zq+xhqo5sLKzGYZGOOLb yyTKm7W3gMGISp7u+oqyl99S64Fl3k36tD5gII75Sto07s88bKCgP8re1DtqJVxGBmIEZD1D/AW CHrz7ODutoD/WS3HhXNsfHkFhsLO+21fKQR1inJLknDTYdkIQ0tLZNRQDNLjyQkVtuhkgY5OC5/ vVD9oUNhdDxDklw== X-Developer-Key: i=duje.mihanovic@skole.hr; a=openpgp; fpr=53DF9D4D9C3FE110FB362D789A119EB0422D96E1 X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net The PXA reset driver still uses the legacy GPIO interface for configuring and asserting the reset pin. Convert it to use the GPIO descriptor interface. Acked-by: Linus Walleij Signed-off-by: Duje Mihanović Reviewed-by: Bartosz Golaszewski --- arch/arm/mach-pxa/reset.c | 39 +++++++++++++-------------------------- arch/arm/mach-pxa/reset.h | 3 +-- arch/arm/mach-pxa/spitz.c | 6 +++++- 3 files changed, 19 insertions(+), 29 deletions(-) diff --git a/arch/arm/mach-pxa/reset.c b/arch/arm/mach-pxa/reset.c index 27293549f8ad..08bc104b9411 100644 --- a/arch/arm/mach-pxa/reset.c +++ b/arch/arm/mach-pxa/reset.c @@ -2,7 +2,7 @@ #include #include #include -#include +#include #include #include #include @@ -14,33 +14,20 @@ static void do_hw_reset(void); -static int reset_gpio = -1; +static struct gpio_desc *reset_gpio; -int init_gpio_reset(int gpio, int output, int level) +int init_gpio_reset(int output, int level) { - int rc; - - rc = gpio_request(gpio, "reset generator"); - if (rc) { - printk(KERN_ERR "Can't request reset_gpio\n"); - goto out; + reset_gpio = gpiod_get(NULL, "reset", GPIOD_ASIS); + if (IS_ERR(reset_gpio)) { + pr_err("Can't request reset_gpio: %pe\n", reset_gpio); + return PTR_ERR(reset_gpio); } if (output) - rc = gpio_direction_output(gpio, level); + return gpiod_direction_output(reset_gpio, level); else - rc = gpio_direction_input(gpio); - if (rc) { - printk(KERN_ERR "Can't configure reset_gpio\n"); - gpio_free(gpio); - goto out; - } - -out: - if (!rc) - reset_gpio = gpio; - - return rc; + return gpiod_direction_input(reset_gpio); } /* @@ -50,16 +37,16 @@ int init_gpio_reset(int gpio, int output, int level) */ static void do_gpio_reset(void) { - BUG_ON(reset_gpio == -1); + BUG_ON(IS_ERR(reset_gpio)); /* drive it low */ - gpio_direction_output(reset_gpio, 0); + gpiod_direction_output(reset_gpio, 0); mdelay(2); /* rising edge or drive high */ - gpio_set_value(reset_gpio, 1); + gpiod_set_value(reset_gpio, 1); mdelay(2); /* falling edge */ - gpio_set_value(reset_gpio, 0); + gpiod_set_value(reset_gpio, 0); /* give it some time */ mdelay(10); diff --git a/arch/arm/mach-pxa/reset.h b/arch/arm/mach-pxa/reset.h index 963dd190bc13..5864f61a0e94 100644 --- a/arch/arm/mach-pxa/reset.h +++ b/arch/arm/mach-pxa/reset.h @@ -13,10 +13,9 @@ extern void pxa_register_wdt(unsigned int reset_status); /** * init_gpio_reset() - register GPIO as reset generator - * @gpio: gpio nr * @output: set gpio as output instead of input during normal work * @level: output level */ -extern int init_gpio_reset(int gpio, int output, int level); +extern int init_gpio_reset(int output, int level); #endif /* __ASM_ARCH_RESET_H */ diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c index 965354e64c68..26ec29c9cd1b 100644 --- a/arch/arm/mach-pxa/spitz.c +++ b/arch/arm/mach-pxa/spitz.c @@ -1024,9 +1024,13 @@ static void spitz_restart(enum reboot_mode mode, const char *cmd) spitz_poweroff(); } +GPIO_LOOKUP_SINGLE(spitz_reset_gpio_table, NULL, "pxa-gpio", + SPITZ_GPIO_ON_RESET, "reset", GPIO_ACTIVE_HIGH); + static void __init spitz_init(void) { - init_gpio_reset(SPITZ_GPIO_ON_RESET, 1, 0); + gpiod_add_lookup_table(&spitz_reset_gpio_table); + init_gpio_reset(1, 0); pm_power_off = spitz_poweroff; PMCR = 0x00; From patchwork Wed Oct 4 14:56:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Duje_Mihanovi=C4=87?= X-Patchwork-Id: 13408867 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4433A18E12 for ; Wed, 4 Oct 2023 14:56:50 +0000 (UTC) Received: from mx.skole.hr (mx1.hosting.skole.hr [161.53.165.185]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8F88011D; Wed, 4 Oct 2023 07:56:48 -0700 (PDT) Received: from mx1.hosting.skole.hr (localhost.localdomain [127.0.0.1]) by mx.skole.hr (mx.skole.hr) with ESMTP id 0B30484AF1; Wed, 4 Oct 2023 16:56:47 +0200 (CEST) From: =?utf-8?q?Duje_Mihanovi=C4=87?= Date: Wed, 04 Oct 2023 16:56:29 +0200 Subject: [PATCH RFC v5 5/6] ARM: pxa: Convert gumstix Bluetooth to GPIO descriptors Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20231004-pxa-gpio-v5-5-d99ae6fceea8@skole.hr> References: <20231004-pxa-gpio-v5-0-d99ae6fceea8@skole.hr> In-Reply-To: <20231004-pxa-gpio-v5-0-d99ae6fceea8@skole.hr> To: Daniel Mack , Haojian Zhuang , Robert Jarzmik , Russell King , Alan Stern , Greg Kroah-Hartman , Linus Walleij , Bartosz Golaszewski , Andy Shevchenko , Dmitry Torokhov , Mark Brown Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-gpio@vger.kernel.org, linux-input@vger.kernel.org, linux-spi@vger.kernel.org, =?utf-8?q?Duje_Mih?= =?utf-8?q?anovi=C4=87?= X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; 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a=openpgp; fpr=53DF9D4D9C3FE110FB362D789A119EB0422D96E1 X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Gumstix still uses the legacy GPIO interface for resetting the Bluetooth device. Convert it to use the GPIO descriptor interface. Reviewed-by: Linus Walleij Signed-off-by: Duje Mihanović Reviewed-by: Bartosz Golaszewski --- arch/arm/mach-pxa/gumstix.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/arch/arm/mach-pxa/gumstix.c b/arch/arm/mach-pxa/gumstix.c index c9f0f62187bd..0bca6e2c80a9 100644 --- a/arch/arm/mach-pxa/gumstix.c +++ b/arch/arm/mach-pxa/gumstix.c @@ -20,8 +20,8 @@ #include #include #include +#include #include -#include #include #include @@ -129,6 +129,11 @@ static void gumstix_udc_init(void) #endif #ifdef CONFIG_BT +GPIO_LOOKUP_SINGLE(gumstix_bt_gpio_table, "pxa2xx-uart.1", "pxa-gpio", + GPIO_GUMSTIX_BTRESET, "BTRST", GPIO_ACTIVE_LOW); + +static struct gpio_desc *bt_reset; + /* Normally, the bootloader would have enabled this 32kHz clock but many ** boards still have u-boot 1.1.4 so we check if it has been turned on and ** if not, we turn it on with a warning message. */ @@ -153,24 +158,19 @@ static void gumstix_setup_bt_clock(void) static void __init gumstix_bluetooth_init(void) { - int err; + gpiod_add_lookup_table(&gumstix_bt_gpio_table); gumstix_setup_bt_clock(); - err = gpio_request(GPIO_GUMSTIX_BTRESET, "BTRST"); - if (err) { + bt_reset = gpiod_get(&pxa_device_btuart.dev, "BTRST", GPIOD_OUT_HIGH); + if (IS_ERR(bt_reset)) { pr_err("gumstix: failed request gpio for bluetooth reset\n"); return; } - err = gpio_direction_output(GPIO_GUMSTIX_BTRESET, 1); - if (err) { - pr_err("gumstix: can't reset bluetooth\n"); - return; - } - gpio_set_value(GPIO_GUMSTIX_BTRESET, 0); + gpiod_set_value(bt_reset, 1); udelay(100); - gpio_set_value(GPIO_GUMSTIX_BTRESET, 1); + gpiod_set_value(bt_reset, 0); } #else static void gumstix_bluetooth_init(void) From patchwork Wed Oct 4 14:56:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Duje_Mihanovi=C4=87?= X-Patchwork-Id: 13408869 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EC89C15EBA for ; Wed, 4 Oct 2023 14:56:52 +0000 (UTC) Received: from mx.skole.hr (mx1.hosting.skole.hr [161.53.165.185]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 04B97C1; Wed, 4 Oct 2023 07:56:49 -0700 (PDT) Received: from mx1.hosting.skole.hr (localhost.localdomain [127.0.0.1]) by mx.skole.hr (mx.skole.hr) with ESMTP id 84E2384CBD; Wed, 4 Oct 2023 16:56:48 +0200 (CEST) From: =?utf-8?q?Duje_Mihanovi=C4=87?= Date: Wed, 04 Oct 2023 16:56:30 +0200 Subject: [PATCH RFC v5 6/6] input: ads7846: Move wait_for_sync() logic to driver Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20231004-pxa-gpio-v5-6-d99ae6fceea8@skole.hr> References: <20231004-pxa-gpio-v5-0-d99ae6fceea8@skole.hr> In-Reply-To: <20231004-pxa-gpio-v5-0-d99ae6fceea8@skole.hr> To: Daniel Mack , Haojian Zhuang , Robert Jarzmik , Russell King , Alan Stern , Greg Kroah-Hartman , Linus Walleij , Bartosz Golaszewski , Andy Shevchenko , Dmitry Torokhov , Mark Brown Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-gpio@vger.kernel.org, linux-input@vger.kernel.org, linux-spi@vger.kernel.org, =?utf-8?q?Duje_Mih?= =?utf-8?q?anovi=C4=87?= X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=4268; i=duje.mihanovic@skole.hr; h=from:subject:message-id; bh=mfGlDLCki8NV8tuIB3jWgW4BpAW+ImMtQkJ8rvZ0eFs=; b=owEBbQKS/ZANAwAIAZoRnrBCLZbhAcsmYgBlHX0ko6QF0tV1IpOHpld/KlsqWZMXejAlxwX4p RioSchfOkqJAjMEAAEIAB0WIQRT351NnD/hEPs2LXiaEZ6wQi2W4QUCZR19JAAKCRCaEZ6wQi2W 4UDJEACL1rzW0OK+OZlq0VZP+NcIBMKUVlmXswhE+c4fqQzKRHdfqVHJ+HNX/f5un7+vbog19mN ghkrHhQ3na+v7tbB2lKBHQfIkfqt8Lpzo4yxZoj/xheHAaTNmC95iIzDcDejfXhn1RFqiCyg8f2 b1/VcmMwKpw881LCL3rBkpws3D6d7E9E8p1Iv62fMYRXgHsm9SJdGxCLx649Z1XT+cw63ERxQAc 9CO8OfRrwX0q2ip4aToA8AjddXA3MPIIfOn61sJh+k6xC/18IuQ5CMeF+R1pmMI4BBELNM0HWPt 4C9GwnRQFfLR2q1IgIuSYYOwKP6xizY6fYWOGeI+oXLqEjpe9yAz+xo+AV3k8SHdrTJfA5wO+Fm 2qZ50mDe3kerUqoOWAsSBf3aejym2q3i84DPemXqPkfk1Gog8R/0LyJtNh/SbP6F3zsmo58N4oo xdxemvjNCm64z0s5l+RJYxZTPB006qGhmS6UReKLHSR7GeV7mm78+y88WQ49BadsUCNol5i5nEH hEJdwUnulJII8uLcsjyGEMJMSK4j+szRDYFuxVo2eaT+cVTDsja40QF3WUhK8qBiCfQHAYeaSZl jqXP36EKy0W8BZkP9wqRrtlYzTa74nY/n4Xw2C4T6g6zXwQzfXyg5HxYpH0xmh2Cbr733QVkoKv JVBGQIlAgoCRiaw== X-Developer-Key: i=duje.mihanovic@skole.hr; a=openpgp; fpr=53DF9D4D9C3FE110FB362D789A119EB0422D96E1 X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net If this code is left in the board file, the sync GPIO would have to be separated into another lookup table during conversion to the GPIO descriptor API (which is also done in this patch). The only user of this code (Sharp Spitz) is also converted in this patch. Suggested-by: Linus Walleij Reviewed-by: Linus Walleij Acked-by: Mark Brown Signed-off-by: Duje Mihanović Reviewed-by: Bartosz Golaszewski --- arch/arm/mach-pxa/spitz.c | 12 ++---------- drivers/input/touchscreen/ads7846.c | 22 +++++++++++++++------- include/linux/spi/ads7846.h | 1 - 3 files changed, 17 insertions(+), 18 deletions(-) diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c index 26ec29c9cd1b..e8bc0249b503 100644 --- a/arch/arm/mach-pxa/spitz.c +++ b/arch/arm/mach-pxa/spitz.c @@ -520,22 +520,12 @@ static inline void spitz_leds_init(void) {} * SSP Devices ******************************************************************************/ #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE) -static void spitz_ads7846_wait_for_hsync(void) -{ - while (gpio_get_value(SPITZ_GPIO_HSYNC)) - cpu_relax(); - - while (!gpio_get_value(SPITZ_GPIO_HSYNC)) - cpu_relax(); -} - static struct ads7846_platform_data spitz_ads7846_info = { .model = 7846, .vref_delay_usecs = 100, .x_plate_ohms = 419, .y_plate_ohms = 486, .pressure_max = 1024, - .wait_for_sync = spitz_ads7846_wait_for_hsync, }; static struct gpiod_lookup_table spitz_ads7846_gpio_table = { @@ -543,6 +533,8 @@ static struct gpiod_lookup_table spitz_ads7846_gpio_table = { .table = { GPIO_LOOKUP("gpio-pxa", SPITZ_GPIO_TP_INT, "pendown", GPIO_ACTIVE_LOW), + GPIO_LOOKUP("gpio-pxa", SPITZ_GPIO_HSYNC, + "sync", GPIO_ACTIVE_LOW), { } }, }; diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index faea40dd66d0..139b0f3735d0 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -138,8 +138,7 @@ struct ads7846 { void *filter_data; int (*get_pendown_state)(void); struct gpio_desc *gpio_pendown; - - void (*wait_for_sync)(void); + struct gpio_desc *sync; }; enum ads7846_filter { @@ -636,9 +635,15 @@ static const struct attribute_group ads784x_attr_group = { }; /*--------------------------------------------------------------------------*/ - -static void null_wait_for_sync(void) +static void ads7846_wait_for_sync_gpio(struct ads7846 *ts) { + if (!ts->sync) + return; + while (!gpiod_get_value(ts->sync)) + cpu_relax(); + + while (gpiod_get_value(ts->sync)) + cpu_relax(); } static int ads7846_debounce_filter(void *ads, int data_idx, int *val) @@ -803,7 +808,7 @@ static void ads7846_read_state(struct ads7846 *ts) packet->last_cmd_idx = 0; while (true) { - ts->wait_for_sync(); + ads7846_wait_for_sync_gpio(ts); m = &ts->msg[msg_idx]; error = spi_sync(ts->spi, m); @@ -1261,8 +1266,6 @@ static int ads7846_probe(struct spi_device *spi) ts->penirq_recheck_delay_usecs = pdata->penirq_recheck_delay_usecs; - ts->wait_for_sync = pdata->wait_for_sync ? : null_wait_for_sync; - snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(dev)); snprintf(ts->name, sizeof(ts->name), "ADS%d Touchscreen", ts->model); @@ -1361,6 +1364,11 @@ static int ads7846_probe(struct spi_device *spi) if (err) return err; + ts->sync = devm_gpiod_get_optional(dev, "sync", GPIOD_IN); + if (IS_ERR(ts->sync)) + return dev_err_probe(dev, PTR_ERR(ts->sync), + "Failed to get sync GPIO"); + err = input_register_device(input_dev); if (err) return err; diff --git a/include/linux/spi/ads7846.h b/include/linux/spi/ads7846.h index a04c1c34c344..fa7c4f119023 100644 --- a/include/linux/spi/ads7846.h +++ b/include/linux/spi/ads7846.h @@ -38,7 +38,6 @@ struct ads7846_platform_data { int gpio_pendown_debounce; /* platform specific debounce time for * the gpio_pendown */ int (*get_pendown_state)(void); - void (*wait_for_sync)(void); bool wakeup; unsigned long irq_flags; };