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Thu, 11 Apr 2024 03:23:05 +0000 From: "Peng Fan (OSS)" Date: Thu, 11 Apr 2024 12:23:00 +0800 Subject: [PATCH v5 2/5] serial: lpuart: use ipg clk for i.MX7ULP Message-Id: <20240411-imx93-of-v2-v5-2-9eb3c64ff160@nxp.com> References: <20240411-imx93-of-v2-v5-0-9eb3c64ff160@nxp.com> In-Reply-To: <20240411-imx93-of-v2-v5-0-9eb3c64ff160@nxp.com> To: Stefano Babic , Fabio Estevam , "NXP i.MX U-Boot Team" , Mathieu Othacehe Cc: u-boot@lists.denx.de, Peng Fan X-Mailer: b4 0.12.3 X-ClientProxiedBy: SI2PR01CA0030.apcprd01.prod.exchangelabs.com (2603:1096:4:192::15) To DU0PR04MB9417.eurprd04.prod.outlook.com (2603:10a6:10:358::11) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DU0PR04MB9417:EE_|PA4PR04MB7951:EE_ X-MS-Office365-Filtering-Correlation-Id: 81dc6020-6e20-4f4d-de32-08dc59d6b3b6 X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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So add a devtype check for i.MX7ULP. Signed-off-by: Peng Fan --- drivers/serial/serial_lpuart.c | 28 +++++++++++++++++++--------- 1 file changed, 19 insertions(+), 9 deletions(-) diff --git a/drivers/serial/serial_lpuart.c b/drivers/serial/serial_lpuart.c index ce08a6b4486..891352293f9 100644 --- a/drivers/serial/serial_lpuart.c +++ b/drivers/serial/serial_lpuart.c @@ -111,11 +111,18 @@ u32 __weak get_lpuart_clk(void) #if CONFIG_IS_ENABLED(CLK) static int get_lpuart_clk_rate(struct udevice *dev, u32 *clk) { + struct lpuart_serial_plat *plat = dev_get_plat(dev); struct clk per_clk; ulong rate; int ret; + char *name; + + if (plat->devtype == DEV_MX7ULP) + name = "ipg"; + else + name = "per"; - ret = clk_get_by_name(dev, "per", &per_clk); + ret = clk_get_by_name(dev, name, &per_clk); if (ret) { dev_err(dev, "Failed to get per clk: %d\n", ret); return ret; @@ -479,19 +486,22 @@ static int lpuart_serial_pending(struct udevice *dev, bool input) static int lpuart_serial_probe(struct udevice *dev) { #if CONFIG_IS_ENABLED(CLK) + struct lpuart_serial_plat *plat = dev_get_plat(dev); struct clk per_clk; struct clk ipg_clk; int ret; - ret = clk_get_by_name(dev, "per", &per_clk); - if (!ret) { - ret = clk_enable(&per_clk); - if (ret) { - dev_err(dev, "Failed to enable per clk: %d\n", ret); - return ret; + if (plat->devtype != DEV_MX7ULP) { + ret = clk_get_by_name(dev, "per", &per_clk); + if (!ret) { + ret = clk_enable(&per_clk); + if (ret) { + dev_err(dev, "Failed to enable per clk: %d\n", ret); + return ret; + } + } else { + debug("%s: Failed to get per clk: %d\n", __func__, ret); } - } else { - debug("%s: Failed to get per clk: %d\n", __func__, ret); } ret = clk_get_by_name(dev, "ipg", &ipg_clk);