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[2001:14ba:16f3:4a00::1]) by smtp.gmail.com with ESMTPSA id f4-20020a056512360400b00492b7d7ee20sm738734lfs.87.2022.08.19.12.18.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 19 Aug 2022 12:18:15 -0700 (PDT) Date: Fri, 19 Aug 2022 22:18:10 +0300 From: Matti Vaittinen To: Matti Vaittinen , Matti Vaittinen Cc: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , David Airlie , Daniel Vetter , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Liam Girdwood , Mark Brown , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 03/14] gpu: drm: simplify drivers using devm_regulator_*get_enable*() Message-ID: <3aacca7d9a0240d95dc3cf103d114b5c85392e71.1660934107.git.mazziesaccount@gmail.com> References: MIME-Version: 1.0 In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220819_121819_192801_62753426 X-CRM114-Status: GOOD ( 16.01 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Simplify drivers using managed "regulator get and enable". meson: Use the devm_regulator_get_enable_optional(). Also drop the seemingly unused struct member 'hdmi_supply'. sii902x: Simplify using devm_regulator_bulk_get_enable() Signed-off-by: Matti Vaittinen Reviewed-by: Robert Foss --- v2 => v3: No changes RFCv1 => v2: - Change also sii902x to use devm_regulator_bulk_get_enable() Please note - this is only compile-tested due to the lack of HW. Careful review and testing is _highly_ appreciated. --- drivers/gpu/drm/bridge/sii902x.c | 22 +++------------------- drivers/gpu/drm/meson/meson_dw_hdmi.c | 23 +++-------------------- 2 files changed, 6 insertions(+), 39 deletions(-) diff --git a/drivers/gpu/drm/bridge/sii902x.c b/drivers/gpu/drm/bridge/sii902x.c index 7ab38d734ad6..162f9c87eeb2 100644 --- a/drivers/gpu/drm/bridge/sii902x.c +++ b/drivers/gpu/drm/bridge/sii902x.c @@ -171,7 +171,6 @@ struct sii902x { struct drm_connector connector; struct gpio_desc *reset_gpio; struct i2c_mux_core *i2cmux; - struct regulator_bulk_data supplies[2]; bool sink_is_hdmi; /* * Mutex protects audio and video functions from interfering @@ -1072,6 +1071,7 @@ static int sii902x_probe(struct i2c_client *client, struct device *dev = &client->dev; struct device_node *endpoint; struct sii902x *sii902x; + static const char * const supplies[] = {"iovcc", "cvcc12"}; int ret; ret = i2c_check_functionality(client->adapter, @@ -1122,27 +1122,13 @@ static int sii902x_probe(struct i2c_client *client, mutex_init(&sii902x->mutex); - sii902x->supplies[0].supply = "iovcc"; - sii902x->supplies[1].supply = "cvcc12"; - ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(sii902x->supplies), - sii902x->supplies); - if (ret < 0) - return ret; - - ret = regulator_bulk_enable(ARRAY_SIZE(sii902x->supplies), - sii902x->supplies); + ret = devm_regulator_bulk_get_enable(dev, ARRAY_SIZE(supplies), supplies); if (ret < 0) { dev_err_probe(dev, ret, "Failed to enable supplies"); return ret; } - ret = sii902x_init(sii902x); - if (ret < 0) { - regulator_bulk_disable(ARRAY_SIZE(sii902x->supplies), - sii902x->supplies); - } - - return ret; + return sii902x_init(sii902x); } static int sii902x_remove(struct i2c_client *client) @@ -1152,8 +1138,6 @@ static int sii902x_remove(struct i2c_client *client) i2c_mux_del_adapters(sii902x->i2cmux); drm_bridge_remove(&sii902x->bridge); - regulator_bulk_disable(ARRAY_SIZE(sii902x->supplies), - sii902x->supplies); return 0; } diff --git a/drivers/gpu/drm/meson/meson_dw_hdmi.c b/drivers/gpu/drm/meson/meson_dw_hdmi.c index 5cd2b2ebbbd3..7642f740272b 100644 --- a/drivers/gpu/drm/meson/meson_dw_hdmi.c +++ b/drivers/gpu/drm/meson/meson_dw_hdmi.c @@ -140,7 +140,6 @@ struct meson_dw_hdmi { struct reset_control *hdmitx_apb; struct reset_control *hdmitx_ctrl; struct reset_control *hdmitx_phy; - struct regulator *hdmi_supply; u32 irq_stat; struct dw_hdmi *hdmi; struct drm_bridge *bridge; @@ -665,11 +664,6 @@ static void meson_dw_hdmi_init(struct meson_dw_hdmi *meson_dw_hdmi) } -static void meson_disable_regulator(void *data) -{ - regulator_disable(data); -} - static void meson_disable_clk(void *data) { clk_disable_unprepare(data); @@ -723,20 +717,9 @@ static int meson_dw_hdmi_bind(struct device *dev, struct device *master, meson_dw_hdmi->data = match; dw_plat_data = &meson_dw_hdmi->dw_plat_data; - meson_dw_hdmi->hdmi_supply = devm_regulator_get_optional(dev, "hdmi"); - if (IS_ERR(meson_dw_hdmi->hdmi_supply)) { - if (PTR_ERR(meson_dw_hdmi->hdmi_supply) == -EPROBE_DEFER) - return -EPROBE_DEFER; - meson_dw_hdmi->hdmi_supply = NULL; - } else { - ret = regulator_enable(meson_dw_hdmi->hdmi_supply); - if (ret) - return ret; - ret = devm_add_action_or_reset(dev, meson_disable_regulator, - meson_dw_hdmi->hdmi_supply); - if (ret) - return ret; - } + ret = devm_regulator_get_enable_optional(dev, "hdmi"); + if (ret != -ENODEV) + return ret; meson_dw_hdmi->hdmitx_apb = devm_reset_control_get_exclusive(dev, "hdmitx_apb");