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[114.32.69.186]) by smtp.gmail.com with ESMTPSA id f67sm2028643pff.29.2019.01.30.01.10.32 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 30 Jan 2019 01:10:32 -0800 (PST) From: AceLan Kao To: kernel-team@lists.ubuntu.com Subject: [PATCH 1/3][SRU][B][C][D] UBUNTU: SAUCE: platform/x86: dell-uart-backlight: add missing status command Date: Wed, 30 Jan 2019 17:10:24 +0800 Message-Id: <20190130091026.14290-2-acelan.kao@canonical.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190130091026.14290-1-acelan.kao@canonical.com> References: <20190130091026.14290-1-acelan.kao@canonical.com> X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.20 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: "kernel-team" BugLink: https://bugs.launchpad.net/bugs/1813877 DELL_UART_GET_SCALAR has been declared in drivers/platform/x86/dell-uart-backlight.h, but its definition is missing. It won't lead to issues on old AIO platforms, since this command is newly introduced and is not supported by all old AIOs. Signed-off-by: AceLan Kao --- drivers/platform/x86/dell-uart-backlight.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/platform/x86/dell-uart-backlight.c b/drivers/platform/x86/dell-uart-backlight.c index ce9a5e200af8..f957da1a452a 100644 --- a/drivers/platform/x86/dell-uart-backlight.c +++ b/drivers/platform/x86/dell-uart-backlight.c @@ -52,6 +52,18 @@ static struct dell_uart_bl_cmd uart_cmd[] = { .cmd = {0x6A, 0x06, 0x8F}, .tx_len = 3, }, + /* + * Get Scalar Status: Tool uses this command to check if scalar IC controls brightness. + * Command: 0x6A 0x1F 0x8F (Length:3 Type: 0x0A, Cmd:0x1F Checksum:0x76) + * Return data: 0x04 0x1F Data checksum + * (Data = 0: scalar cannot adjust brightness, Data = 1: scalar can adjust brightness) + */ + [DELL_UART_GET_SCALAR] = { + .cmd = {0x6A,0x1F,0x76}, + .ret = {0x04,0x1F,0x00,0x00}, + .tx_len = 3, + .rx_len = 4, + }, /* * Get Brightness level: Application uses this command for scaler to * get brightness.