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([2a01:e0a:106d:1080:336e:a1a0:8f96:9f7a]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-48868886e45sm14944343f8f.31.2026.09.24.06.15.47 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 24 Sep 2026 06:15:47 -0700 (PDT) Message-ID: Date: Thu, 24 Sep 2026 15:15:46 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Neil Armstrong Reply-To: Neil Armstrong Subject: Re: [PATCH v3 2/4] drm/panel: ilitek-ili9882t: Make enable GPIO optional To: Marek Vasut , dri-devel@lists.freedesktop.org Cc: Conor Dooley , Dave Stevenson , David Airlie , Jessica Zhang , Krzysztof Kozlowski , Maarten Lankhorst , Maxime Ripard , Rob Herring , Simona Vetter , Thomas Zimmermann , devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org References: <20260910181918.31551-1-marek.vasut+renesas@mailbox.org> <20260910181918.31551-2-marek.vasut+renesas@mailbox.org> Content-Language: en-US, fr Autocrypt: addr=neil.armstrong@linaro.org; keydata= xsBNBE1ZBs8BCAD78xVLsXPwV/2qQx2FaO/7mhWL0Qodw8UcQJnkrWmgTFRobtTWxuRx8WWP GTjuhvbleoQ5Cxjr+v+1ARGCH46MxFP5DwauzPekwJUD5QKZlaw/bURTLmS2id5wWi3lqVH4 BVF2WzvGyyeV1o4RTCYDnZ9VLLylJ9bneEaIs/7cjCEbipGGFlfIML3sfqnIvMAxIMZrvcl9 qPV2k+KQ7q+aXavU5W+yLNn7QtXUB530Zlk/d2ETgzQ5FLYYnUDAaRl+8JUTjc0CNOTpCeik 80TZcE6f8M76Xa6yU8VcNko94Ck7iB4vj70q76P/J7kt98hklrr85/3NU3oti3nrIHmHABEB AAHNKk5laWwgQXJtc3Ryb25nIDxuZWlsLmFybXN0cm9uZ0BsaW5hcm8ub3JnPsLAkQQTAQoA OwIbIwULCQgHAwUVCgkICwUWAgMBAAIeAQIXgBYhBInsPQWERiF0UPIoSBaat7Gkz/iuBQJk Q5wSAhkBAAoJEBaat7Gkz/iuyhMIANiD94qDtUTJRfEW6GwXmtKWwl/mvqQtaTtZID2dos04 YqBbshiJbejgVJjy+HODcNUIKBB3PSLaln4ltdsV73SBcwUNdzebfKspAQunCM22Mn6FBIxQ GizsMLcP/0FX4en9NaKGfK6ZdKK6kN1GR9YffMJd2P08EO8mHowmSRe/ExAODhAs9W7XXExw UNCY4pVJyRPpEhv373vvff60bHxc1k/FF9WaPscMt7hlkbFLUs85kHtQAmr8pV5Hy9ezsSRa GzJmiVclkPc2BY592IGBXRDQ38urXeM4nfhhvqA50b/nAEXc6FzqgXqDkEIwR66/Gbp0t3+r yQzpKRyQif3OwE0ETVkGzwEIALyKDN/OGURaHBVzwjgYq+ZtifvekdrSNl8TIDH8g1xicBYp QTbPn6bbSZbdvfeQPNCcD4/EhXZuhQXMcoJsQQQnO4vwVULmPGgtGf8PVc7dxKOeta+qUh6+ SRh3vIcAUFHDT3f/Zdspz+e2E0hPV2hiSvICLk11qO6cyJE13zeNFoeY3ggrKY+IzbFomIZY 4yG6xI99NIPEVE9lNBXBKIlewIyVlkOaYvJWSV+p5gdJXOvScNN1epm5YHmf9aE2ZjnqZGoM Mtsyw18YoX9BqMFInxqYQQ3j/HpVgTSvmo5ea5qQDDUaCsaTf8UeDcwYOtgI8iL4oHcsGtUX oUk33HEAEQEAAcLAXwQYAQIACQUCTVkGzwIbDAAKCRAWmrexpM/4rrXiB/sGbkQ6itMrAIfn M7IbRuiSZS1unlySUVYu3SD6YBYnNi3G5EpbwfBNuT3H8//rVvtOFK4OD8cRYkxXRQmTvqa3 3eDIHu/zr1HMKErm+2SD6PO9umRef8V82o2oaCLvf4WeIssFjwB0b6a12opuRP7yo3E3gTCS KmbUuLv1CtxKQF+fUV1cVaTPMyT25Od+RC1K+iOR0F54oUJvJeq7fUzbn/KdlhA8XPGzwGRy 4zcsPWvwnXgfe5tk680fEKZVwOZKIEuJC3v+/yZpQzDvGYJvbyix0lHnrCzq43WefRHI5XTT QbM0WUIBIcGmq38+OgUsMYu4NzLu7uZFAcmp6h8g Organization: Linaro In-Reply-To: <20260910181918.31551-2-marek.vasut+renesas@mailbox.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 9/10/26 20:18, Marek Vasut wrote: > The enable GPIO may not be accessible on the panel, make it optional. > This is the case on 10" Raspberry Pi Touch Display 2. > > Signed-off-by: Marek Vasut > --- > Cc: Conor Dooley > Cc: Dave Stevenson > Cc: David Airlie > Cc: Jessica Zhang > Cc: Krzysztof Kozlowski > Cc: Maarten Lankhorst > Cc: Maxime Ripard > Cc: Neil Armstrong > Cc: Rob Herring > Cc: Simona Vetter > Cc: Thomas Zimmermann > Cc: devicetree@vger.kernel.org > Cc: dri-devel@lists.freedesktop.org > Cc: linux-renesas-soc@vger.kernel.org > --- > V2: No change > V3: No change > --- > drivers/gpu/drm/panel/panel-ilitek-ili9882t.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9882t.c b/drivers/gpu/drm/panel/panel-ilitek-ili9882t.c > index d4b383138488a..69f6427bb4ffb 100644 > --- a/drivers/gpu/drm/panel/panel-ilitek-ili9882t.c > +++ b/drivers/gpu/drm/panel/panel-ilitek-ili9882t.c > @@ -787,7 +787,7 @@ static int ili9882t_add(struct ili9882t *ili) > if (IS_ERR(ili->pp1800)) > return PTR_ERR(ili->pp1800); > > - ili->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW); > + ili->enable_gpio = devm_gpiod_get_optional(dev, "enable", GPIOD_OUT_LOW); > if (IS_ERR(ili->enable_gpio)) { > dev_err(dev, "cannot get enable-gpios %ld\n", > PTR_ERR(ili->enable_gpio)); Reviewed-by: Neil Armstrong Thanks, Neil