From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id CD8D22F44 for ; Fri, 11 Feb 2022 12:26:51 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 8292111D4; Fri, 11 Feb 2022 04:26:51 -0800 (PST) Received: from donnerap.arm.com (donnerap.cambridge.arm.com [10.1.196.172]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id CF0273F70D; Fri, 11 Feb 2022 04:26:49 -0800 (PST) From: Andre Przywara To: Maxime Ripard , Chen-Yu Tsai , Jernej Skrabec Cc: Rob Herring , Ondrej Jirman , Icenowy Zheng , Samuel Holland , linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, Michael Turquette , Stephen Boyd , linux-clk@vger.kernel.org Subject: [PATCH v10 01/18] clk: sunxi-ng: h616-r: Add RTC gate clock Date: Fri, 11 Feb 2022 12:26:26 +0000 Message-Id: <20220211122643.1343315-2-andre.przywara@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220211122643.1343315-1-andre.przywara@arm.com> References: <20220211122643.1343315-1-andre.przywara@arm.com> Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The H616 features an (undocumented) bus clock gate for accessing the RTC registers. This seems to be enabled at reset (or by the BootROM), but is there anyway. Since the new RTC clock binding for the H616 requires this "bus" clock to be specified in the DT, add this to R_CCU clock driver and expose it on the DT side with a new number. Signed-off-by: Andre Przywara --- drivers/clk/sunxi-ng/ccu-sun50i-h6-r.c | 4 ++++ drivers/clk/sunxi-ng/ccu-sun50i-h6-r.h | 2 +- include/dt-bindings/clock/sun50i-h6-r-ccu.h | 1 + 3 files changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-h6-r.c b/drivers/clk/sunxi-ng/ccu-sun50i-h6-r.c index 712e103382d8..26fb092f6df6 100644 --- a/drivers/clk/sunxi-ng/ccu-sun50i-h6-r.c +++ b/drivers/clk/sunxi-ng/ccu-sun50i-h6-r.c @@ -98,6 +98,8 @@ static SUNXI_CCU_GATE(r_apb1_ir_clk, "r-apb1-ir", "r-apb1", 0x1cc, BIT(0), 0); static SUNXI_CCU_GATE(r_apb1_w1_clk, "r-apb1-w1", "r-apb1", 0x1ec, BIT(0), 0); +static SUNXI_CCU_GATE(r_apb1_rtc_clk, "r-apb1-rtc", "r-apb1", + 0x20c, BIT(0), 0); /* Information of IR(RX) mod clock is gathered from BSP source code */ static const char * const r_mod0_default_parents[] = { "osc32k", "osc24M" }; @@ -147,6 +149,7 @@ static struct ccu_common *sun50i_h616_r_ccu_clks[] = { &r_apb2_i2c_clk.common, &r_apb2_rsb_clk.common, &r_apb1_ir_clk.common, + &r_apb1_rtc_clk.common, &ir_clk.common, }; @@ -179,6 +182,7 @@ static struct clk_hw_onecell_data sun50i_h616_r_hw_clks = { [CLK_R_APB2_I2C] = &r_apb2_i2c_clk.common.hw, [CLK_R_APB2_RSB] = &r_apb2_rsb_clk.common.hw, [CLK_R_APB1_IR] = &r_apb1_ir_clk.common.hw, + [CLK_R_APB1_RTC] = &r_apb1_rtc_clk.common.hw, [CLK_IR] = &ir_clk.common.hw, }, .num = CLK_NUMBER, diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-h6-r.h b/drivers/clk/sunxi-ng/ccu-sun50i-h6-r.h index 7e290b840803..10e9b66afc6a 100644 --- a/drivers/clk/sunxi-ng/ccu-sun50i-h6-r.h +++ b/drivers/clk/sunxi-ng/ccu-sun50i-h6-r.h @@ -14,6 +14,6 @@ #define CLK_R_APB2 3 -#define CLK_NUMBER (CLK_R_APB2_RSB + 1) +#define CLK_NUMBER (CLK_R_APB1_RTC + 1) #endif /* _CCU_SUN50I_H6_R_H */ diff --git a/include/dt-bindings/clock/sun50i-h6-r-ccu.h b/include/dt-bindings/clock/sun50i-h6-r-ccu.h index 890368d252c4..a96087abc86f 100644 --- a/include/dt-bindings/clock/sun50i-h6-r-ccu.h +++ b/include/dt-bindings/clock/sun50i-h6-r-ccu.h @@ -22,5 +22,6 @@ #define CLK_W1 12 #define CLK_R_APB2_RSB 13 +#define CLK_R_APB1_RTC 14 #endif /* _DT_BINDINGS_CLK_SUN50I_H6_R_CCU_H_ */ -- 2.25.1