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Mon, 13 May 2024 14:13:24 -0400 (EDT) From: Jiaxun Yang Date: Mon, 13 May 2024 19:13:07 +0100 Subject: [PATCH 10/13] clk: boston: Allow to get regmap from parent device MIME-Version: 1.0 Message-Id: <20240513-boston-v1-10-fac96938417e@flygoat.com> References: <20240513-boston-v1-0-fac96938417e@flygoat.com> In-Reply-To: <20240513-boston-v1-0-fac96938417e@flygoat.com> To: u-boot@lists.denx.de Cc: Michal Simek , Tom Rini , Daniel Schwierzeck , Paul Burton , Simon Glass , Lukasz Majewski , Sean Anderson , Sumit Garg , Jiaxun Yang X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1326; i=jiaxun.yang@flygoat.com; h=from:subject:message-id; bh=DfqmG+aARBsvQ0h3NuFP+96dkFMiCYO7T5+Q/H3qFVo=; b=owGbwMvMwCHmXMhTe71c8zDjabUkhjSnCOMUrvVPX/cnGjAUvZY+z26urXKBs/JjnN6Kug+1g olHn0d3lLIwiHEwyIopsoQIKPVtaLy44PqDrD8wc1iZQIYwcHEKwEQmcDAyzEj+IiSxdIJw/+wJ 0Wvyb05gquDLunwsqS/gRNuzj1Un9BkZPniuld6g/XjjbqMp/lJlDEYf5vWt1rU5u9XNS25ppks NAwA= X-Developer-Key: i=jiaxun.yang@flygoat.com; a=openpgp; fpr=980379BEFEBFBF477EA04EF9C111949073FC0F67 X-Mailman-Approved-At: Mon, 13 May 2024 20:17:26 +0200 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 In upstream devicetree, clk_boston is a child of syscon node and there is no "regmap" property for clk_boston node. Try to check parent device first to look for syscon. Signed-off-by: Jiaxun Yang --- drivers/clk/clk_boston.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/clk/clk_boston.c b/drivers/clk/clk_boston.c index 030ff7cc58ec..2e584ed867d5 100644 --- a/drivers/clk/clk_boston.c +++ b/drivers/clk/clk_boston.c @@ -64,11 +64,15 @@ static int clk_boston_of_to_plat(struct udevice *dev) struct udevice *syscon; int err; - err = uclass_get_device_by_phandle(UCLASS_SYSCON, dev, - "regmap", &syscon); - if (err) { - pr_err("unable to find syscon device\n"); - return err; + if (device_get_uclass_id(dev->parent) == UCLASS_SYSCON) { + syscon = dev->parent; + } else { + err = uclass_get_device_by_phandle(UCLASS_SYSCON, dev, + "regmap", &syscon); + if (err) { + pr_err("unable to find syscon device\n"); + return err; + } } state->regmap = syscon_get_regmap(syscon); @@ -94,4 +98,5 @@ U_BOOT_DRIVER(clk_boston) = { .of_to_plat = clk_boston_of_to_plat, .plat_auto = sizeof(struct clk_boston), .ops = &clk_boston_ops, + .flags = DM_FLAG_PRE_RELOC, };