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[89.212.118.115]) by smtp.gmail.com with ESMTPSA id v6-20020a50c406000000b0050432d2b443sm2595818edf.48.2023.04.07.23.11.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 07 Apr 2023 23:11:32 -0700 (PDT) From: Jernej =?utf-8?B?xaBrcmFiZWM=?= To: Samuel Holland , Anatolij Gustschin , Andre Przywara Cc: Lukasz Majewski , Jagan Teki , Sean Anderson , u-boot@lists.denx.de, linux-sunxi@lists.linux.dev Subject: Re: [PATCH v2 2/2] video: sunxi: dw-hdmi: Use DM for HVCC regulator Date: Sat, 08 Apr 2023 08:11:31 +0200 Message-ID: <5661411.DvuYhMxLoT@jernej-laptop> In-Reply-To: <20230408002639.26241-3-andre.przywara@arm.com> References: <20230408002639.26241-1-andre.przywara@arm.com> <20230408002639.26241-3-andre.przywara@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean Dne sobota, 08. april 2023 ob 02:26:39 CEST je Andre Przywara napisal(a): > From: Samuel Holland > > The HDMI PHY depends on the HVCC supply being enabled. So far we have > relied on it being enabled by an earlier firmware stage (SPL or TF-A). > Attempt to enable the regulator here, so we can remove that dependency. > > Signed-off-by: Samuel Holland > Signed-off-by: Andre Przywara Reviewed-by: Jernej Skrabec Best regards, Jernej > --- > drivers/video/sunxi/sunxi_dw_hdmi.c | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/drivers/video/sunxi/sunxi_dw_hdmi.c > b/drivers/video/sunxi/sunxi_dw_hdmi.c index ef18d1f281f..0324a050d03 100644 > --- a/drivers/video/sunxi/sunxi_dw_hdmi.c > +++ b/drivers/video/sunxi/sunxi_dw_hdmi.c > @@ -19,11 +19,13 @@ > #include > #include > #include > +#include > > struct sunxi_dw_hdmi_priv { > struct dw_hdmi hdmi; > struct reset_ctl_bulk resets; > struct clk_bulk clocks; > + struct udevice *hvcc; > }; > > struct sunxi_hdmi_phy { > @@ -333,6 +335,9 @@ static int sunxi_dw_hdmi_probe(struct udevice *dev) > (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; > int ret; > > + if (priv->hvcc) > + regulator_set_enable(priv->hvcc, true); > + > /* Set pll3 to 297 MHz */ > clock_set_pll3(297000000); > > @@ -384,6 +389,10 @@ static int sunxi_dw_hdmi_of_to_plat(struct udevice > *dev) if (ret) > return ret; > > + ret = device_get_supply_regulator(dev, "hvcc-supply", &priv->hvcc); > + if (ret) > + priv->hvcc = NULL; > + > return 0; > }