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Downing" , Piotr Wojtaszczyk , Vladimir Zapolskiy , Liam Girdwood , Mark Brown , Russell King , Michael Turquette , Stephen Boyd , Andi Shyti , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Jaroslav Kysela , Takashi Iwai , Arnd Bergmann , Yangtao Li , Li Zetao , Michael Ellerman , Chancel Liu , dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, alsa-devel@alsa-project.org, linuxppc-dev@lists.ozlabs.org, linux-sound@vger.kernel.org, linux-clk@vger.kernel.org, linux-i2c@vger.kernel.org, linux-mtd@lists.infradead.org Cc: Markus Elfring Subject: [Patch v4 05/10] clk: lpc32xx: initialize regmap using parent syscon Date: Thu, 20 Jun 2024 19:56:36 +0200 Message-Id: <20240620175657.358273-6-piotr.wojtaszczyk@timesys.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240620175657.358273-1-piotr.wojtaszczyk@timesys.com> References: <20240620175657.358273-1-piotr.wojtaszczyk@timesys.com> Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 This allows to share the regmap with other simple-mfd devices like nxp,lpc32xx-dmamux Signed-off-by: Piotr Wojtaszczyk --- Changes for v4: - This patch is new in v4 drivers/clk/Kconfig | 1 + drivers/clk/nxp/clk-lpc32xx.c | 10 ++-------- 2 files changed, 3 insertions(+), 8 deletions(-) diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig index 3e9099504fad..85ef57d5cccf 100644 --- a/drivers/clk/Kconfig +++ b/drivers/clk/Kconfig @@ -346,6 +346,7 @@ config COMMON_CLK_LOONGSON2 config COMMON_CLK_NXP def_bool COMMON_CLK && (ARCH_LPC18XX || ARCH_LPC32XX) select REGMAP_MMIO if ARCH_LPC32XX + select MFD_SYSCON if ARCH_LPC32XX select MFD_SYSCON if ARCH_LPC18XX help Support for clock providers on NXP platforms. diff --git a/drivers/clk/nxp/clk-lpc32xx.c b/drivers/clk/nxp/clk-lpc32xx.c index d0f870eff0d6..2a183a9ded93 100644 --- a/drivers/clk/nxp/clk-lpc32xx.c +++ b/drivers/clk/nxp/clk-lpc32xx.c @@ -7,6 +7,7 @@ #include #include #include +#include #include #include @@ -1511,17 +1512,10 @@ static void __init lpc32xx_clk_init(struct device_node *np) return; } - base = of_iomap(np, 0); - if (!base) { - pr_err("failed to map system control block registers\n"); - return; - } - - clk_regmap = regmap_init_mmio(NULL, base, &lpc32xx_scb_regmap_config); + clk_regmap = syscon_node_to_regmap(np->parent); if (IS_ERR(clk_regmap)) { pr_err("failed to regmap system control block: %ld\n", PTR_ERR(clk_regmap)); - iounmap(base); return; }