From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thierry Reding Subject: [PATCH v5 8/8] clk: tegra: Remove the old emc_mux clock for Tegra210 Date: Tue, 10 Mar 2020 16:20:03 +0100 Message-ID: <20200310152003.2945170-9-thierry.reding@gmail.com> References: <20200310152003.2945170-1-thierry.reding@gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20200310152003.2945170-1-thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Thierry Reding Cc: Jon Hunter , Dmitry Osipenko , Rob Herring , Mark Rutland , Michael Turquette , Stephen Boyd , Joseph Lo , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-clk-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: linux-tegra@vger.kernel.org From: Joseph Lo Remove the old emc_mux clock and don't use the common EMC clock definition. This will be replaced by a new clock defined in the EMC driver. Signed-off-by: Joseph Lo Signed-off-by: Thierry Reding --- drivers/clk/tegra/clk-tegra210.c | 46 ++++++++++++++++++++------------ 1 file changed, 29 insertions(+), 17 deletions(-) diff --git a/drivers/clk/tegra/clk-tegra210.c b/drivers/clk/tegra/clk-tegra210.c index 0a5be781da60..53a570b1fc29 100644 --- a/drivers/clk/tegra/clk-tegra210.c +++ b/drivers/clk/tegra/clk-tegra210.c @@ -319,12 +319,6 @@ static unsigned long tegra210_input_freq[] = { [8] = 12000000, }; -static const char *mux_pllmcp_clkm[] = { - "pll_m", "pll_c", "pll_p", "clk_m", "pll_m_ud", "pll_mb", "pll_mb", - "pll_p", -}; -#define mux_pllmcp_clkm_idx NULL - #define PLL_ENABLE (1 << 30) #define PLLCX_MISC1_IDDQ (1 << 27) @@ -2336,7 +2330,6 @@ static struct tegra_clk tegra210_clks[tegra_clk_max] __initdata = { [tegra_clk_i2c2] = { .dt_id = TEGRA210_CLK_I2C2, .present = true }, [tegra_clk_uartc_8] = { .dt_id = TEGRA210_CLK_UARTC, .present = true }, [tegra_clk_mipi_cal] = { .dt_id = TEGRA210_CLK_MIPI_CAL, .present = true }, - [tegra_clk_emc] = { .dt_id = TEGRA210_CLK_EMC, .present = true }, [tegra_clk_usb2] = { .dt_id = TEGRA210_CLK_USB2, .present = true }, [tegra_clk_bsev] = { .dt_id = TEGRA210_CLK_BSEV, .present = true }, [tegra_clk_uartd_8] = { .dt_id = TEGRA210_CLK_UARTD, .present = true }, @@ -2987,6 +2980,27 @@ static const char * const sor1_parents[] = { static u32 sor1_parents_idx[] = { 0, 2, 5, 6 }; +static const struct clk_div_table mc_div_table_tegra210[] = { + { .val = 0, .div = 2 }, + { .val = 1, .div = 4 }, + { .val = 2, .div = 1 }, + { .val = 3, .div = 2 }, + { .val = 0, .div = 0 }, +}; + +static void tegra210_clk_register_mc(const char *name, + const char *parent_name) +{ + struct clk *clk; + + clk = clk_register_divider_table(NULL, name, parent_name, + CLK_IS_CRITICAL, + clk_base + CLK_SOURCE_EMC, + 15, 2, CLK_DIVIDER_READ_ONLY, + mc_div_table_tegra210, &emc_lock); + clks[TEGRA210_CLK_MC] = clk; +} + static const char * const sor1_out_parents[] = { /* * Bit 0 of the mux selects sor1_pad_clkout, irrespective of bit 1, so @@ -3029,7 +3043,8 @@ static const char * const la_parents[] = { static struct tegra_clk_periph tegra210_la = TEGRA_CLK_PERIPH(29, 7, 9, 0, 8, 1, TEGRA_DIVIDER_ROUND_UP, 76, 0, NULL, 0); -static __init void tegra210_periph_clk_init(void __iomem *clk_base, +static __init void tegra210_periph_clk_init(struct device_node *np, + void __iomem *clk_base, void __iomem *pmc_base) { struct clk *clk; @@ -3075,15 +3090,12 @@ static __init void tegra210_periph_clk_init(void __iomem *clk_base, CLK_SOURCE_LA, 0); clks[TEGRA210_CLK_LA] = clk; - /* emc mux */ - clk = clk_register_mux(NULL, "emc_mux", mux_pllmcp_clkm, - ARRAY_SIZE(mux_pllmcp_clkm), 0, - clk_base + CLK_SOURCE_EMC, - 29, 3, 0, &emc_lock); + /* emc */ + clk = tegra210_clk_register_emc(np, clk_base); + clks[TEGRA210_CLK_EMC] = clk; - clk = tegra_clk_register_mc("mc", "emc_mux", clk_base + CLK_SOURCE_EMC, - &emc_lock); - clks[TEGRA210_CLK_MC] = clk; + /* mc */ + tegra210_clk_register_mc("mc", "emc"); /* cml0 */ clk = clk_register_gate(NULL, "cml0", "pll_e", 0, clk_base + PLLE_AUX, @@ -3728,7 +3740,7 @@ static void __init tegra210_clock_init(struct device_node *np) tegra_fixed_clk_init(tegra210_clks); tegra210_pll_init(clk_base, pmc_base); - tegra210_periph_clk_init(clk_base, pmc_base); + tegra210_periph_clk_init(np, clk_base, pmc_base); tegra_audio_clk_init(clk_base, pmc_base, tegra210_clks, tegra210_audio_plls, ARRAY_SIZE(tegra210_audio_plls), 24576000); -- 2.24.1