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From:   =?UTF-8?q?Alvin=20=C5=A0ipraga?= <alvin@pqrs.dk>
To:     Abel Vesa <abel.vesa@nxp.com>,
        Michael Turquette <mturquette@baylibre.com>,
        Stephen Boyd <sboyd@kernel.org>,
        Shawn Guo <shawnguo@kernel.org>,
        Sascha Hauer <s.hauer@pengutronix.de>,
        Pengutronix Kernel Team <kernel@pengutronix.de>,
        Fabio Estevam <festevam@gmail.com>,
        NXP Linux Team <linux-imx@nxp.com>,
        Rob Herring <robh+dt@kernel.org>
Cc:     =?UTF-8?q?Alvin=20=C5=A0ipraga?= <alsi@bang-olufsen.dk>,
        linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org, devicetree@vger.kernel.org
Subject: [PATCH v2 2/2] clk: imx8mn: add GPT support
Date:   Thu, 17 Mar 2022 23:35:59 +0100
Message-Id: <20220317223600.175894-2-alvin@pqrs.dk>
In-Reply-To: <20220317223600.175894-1-alvin@pqrs.dk>
References: <20220317223600.175894-1-alvin@pqrs.dk>
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From: Alvin Šipraga <alsi@bang-olufsen.dk>

Add support for the General Purpose Timer (GPT) clocks on the i.MX8MN.
The i.MX8MN GPT IP block is the same as on the i.MX8MM, on which this
patch is based.

Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
---
v1->v2: for reasons of consistency, change lines of the form:

    static const char *const imx8mn_gpt...

to

    static const char * const imx8mn_gpt...

and adjust the indentation accordingly.
---
 drivers/clk/imx/clk-imx8mn.c | 38 ++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/drivers/clk/imx/clk-imx8mn.c b/drivers/clk/imx/clk-imx8mn.c
index 92fcbab4f5be..fb058cb38c27 100644
--- a/drivers/clk/imx/clk-imx8mn.c
+++ b/drivers/clk/imx/clk-imx8mn.c
@@ -227,6 +227,30 @@ static const char * const imx8mn_pwm4_sels[] = {"osc_24m", "sys_pll2_100m", "sys
 						"sys_pll1_40m", "sys_pll3_out", "clk_ext2",
 						"sys_pll1_80m", "video_pll1_out", };
 
+static const char * const imx8mn_gpt1_sels[] = {"osc_24m", "sys_pll2_100m", "sys_pll1_400m",
+						"sys_pll1_40m", "video_pll1_out", "sys_pll1_80m",
+						"audio_pll1_out", "clk_ext1", };
+
+static const char * const imx8mn_gpt2_sels[] = {"osc_24m", "sys_pll2_100m", "sys_pll1_400m",
+						"sys_pll1_40m", "video_pll1_out", "sys_pll1_80m",
+						"audio_pll1_out", "clk_ext1", };
+
+static const char * const imx8mn_gpt3_sels[] = {"osc_24m", "sys_pll2_100m", "sys_pll1_400m",
+						"sys_pll1_40m", "video_pll1_out", "sys_pll1_80m",
+						"audio_pll1_out", "clk_ext1", };
+
+static const char * const imx8mn_gpt4_sels[] = {"osc_24m", "sys_pll2_100m", "sys_pll1_400m",
+						"sys_pll1_40m", "video_pll1_out", "sys_pll1_80m",
+						"audio_pll1_out", "clk_ext1", };
+
+static const char * const imx8mn_gpt5_sels[] = {"osc_24m", "sys_pll2_100m", "sys_pll1_400m",
+						"sys_pll1_40m", "video_pll1_out", "sys_pll1_80m",
+						"audio_pll1_out", "clk_ext1", };
+
+static const char * const imx8mn_gpt6_sels[] = {"osc_24m", "sys_pll2_100m", "sys_pll1_400m",
+						"sys_pll1_40m", "video_pll1_out", "sys_pll1_80m",
+						"audio_pll1_out", "clk_ext1", };
+
 static const char * const imx8mn_wdog_sels[] = {"osc_24m", "sys_pll1_133m", "sys_pll1_160m",
 						"vpu_pll_out", "sys_pll2_125m", "sys_pll3_out",
 						"sys_pll1_80m", "sys_pll2_166m", };
@@ -476,6 +500,12 @@ static int imx8mn_clocks_probe(struct platform_device *pdev)
 	hws[IMX8MN_CLK_PWM2] = imx8m_clk_hw_composite("pwm2", imx8mn_pwm2_sels, base + 0xb400);
 	hws[IMX8MN_CLK_PWM3] = imx8m_clk_hw_composite("pwm3", imx8mn_pwm3_sels, base + 0xb480);
 	hws[IMX8MN_CLK_PWM4] = imx8m_clk_hw_composite("pwm4", imx8mn_pwm4_sels, base + 0xb500);
+	hws[IMX8MN_CLK_GPT1] = imx8m_clk_hw_composite("gpt1", imx8mn_gpt1_sels, base + 0xb580);
+	hws[IMX8MN_CLK_GPT2] = imx8m_clk_hw_composite("gpt2", imx8mn_gpt2_sels, base + 0xb600);
+	hws[IMX8MN_CLK_GPT3] = imx8m_clk_hw_composite("gpt3", imx8mn_gpt3_sels, base + 0xb680);
+	hws[IMX8MN_CLK_GPT4] = imx8m_clk_hw_composite("gpt4", imx8mn_gpt4_sels, base + 0xb700);
+	hws[IMX8MN_CLK_GPT5] = imx8m_clk_hw_composite("gpt5", imx8mn_gpt5_sels, base + 0xb780);
+	hws[IMX8MN_CLK_GPT6] = imx8m_clk_hw_composite("gpt6", imx8mn_gpt6_sels, base + 0xb800);
 	hws[IMX8MN_CLK_WDOG] = imx8m_clk_hw_composite("wdog", imx8mn_wdog_sels, base + 0xb900);
 	hws[IMX8MN_CLK_WRCLK] = imx8m_clk_hw_composite("wrclk", imx8mn_wrclk_sels, base + 0xb980);
 	hws[IMX8MN_CLK_CLKO1] = imx8m_clk_hw_composite("clko1", imx8mn_clko1_sels, base + 0xba00);
@@ -501,6 +531,12 @@ static int imx8mn_clocks_probe(struct platform_device *pdev)
 	hws[IMX8MN_CLK_GPIO3_ROOT] = imx_clk_hw_gate4("gpio3_root_clk", "ipg_root", base + 0x40d0, 0);
 	hws[IMX8MN_CLK_GPIO4_ROOT] = imx_clk_hw_gate4("gpio4_root_clk", "ipg_root", base + 0x40e0, 0);
 	hws[IMX8MN_CLK_GPIO5_ROOT] = imx_clk_hw_gate4("gpio5_root_clk", "ipg_root", base + 0x40f0, 0);
+	hws[IMX8MN_CLK_GPT1_ROOT] = imx_clk_hw_gate4("gpt1_root_clk", "gpt1", base + 0x4100, 0);
+	hws[IMX8MN_CLK_GPT2_ROOT] = imx_clk_hw_gate4("gpt2_root_clk", "gpt2", base + 0x4110, 0);
+	hws[IMX8MN_CLK_GPT3_ROOT] = imx_clk_hw_gate4("gpt3_root_clk", "gpt3", base + 0x4120, 0);
+	hws[IMX8MN_CLK_GPT4_ROOT] = imx_clk_hw_gate4("gpt4_root_clk", "gpt4", base + 0x4130, 0);
+	hws[IMX8MN_CLK_GPT5_ROOT] = imx_clk_hw_gate4("gpt5_root_clk", "gpt5", base + 0x4140, 0);
+	hws[IMX8MN_CLK_GPT6_ROOT] = imx_clk_hw_gate4("gpt6_root_clk", "gpt6", base + 0x4150, 0);
 	hws[IMX8MN_CLK_I2C1_ROOT] = imx_clk_hw_gate4("i2c1_root_clk", "i2c1", base + 0x4170, 0);
 	hws[IMX8MN_CLK_I2C2_ROOT] = imx_clk_hw_gate4("i2c2_root_clk", "i2c2", base + 0x4180, 0);
 	hws[IMX8MN_CLK_I2C3_ROOT] = imx_clk_hw_gate4("i2c3_root_clk", "i2c3", base + 0x4190, 0);
@@ -549,6 +585,8 @@ static int imx8mn_clocks_probe(struct platform_device *pdev)
 	hws[IMX8MN_CLK_SDMA3_ROOT] = imx_clk_hw_gate4("sdma3_clk", "ipg_audio_root", base + 0x45f0, 0);
 	hws[IMX8MN_CLK_SAI7_ROOT] = imx_clk_hw_gate2_shared2("sai7_root_clk", "sai7", base + 0x4650, 0, &share_count_sai7);
 
+	hws[IMX8MN_CLK_GPT_3M] = imx_clk_hw_fixed_factor("gpt_3m", "osc_24m", 1, 8);
+
 	hws[IMX8MN_CLK_DRAM_ALT_ROOT] = imx_clk_hw_fixed_factor("dram_alt_root", "dram_alt", 1, 4);
 
 	hws[IMX8MN_CLK_ARM] = imx_clk_hw_cpu("arm", "arm_a53_core",
-- 
2.35.1