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([82.78.167.161]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-5d3e7936581sm4853124a12.56.2024.12.10.09.10.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 Dec 2024 09:10:06 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: geert+renesas@glider.be, mturquette@baylibre.com, sboyd@kernel.org, robh+dt@kernel.org, lgirdwood@gmail.com, broonie@kernel.org, magnus.damm@gmail.com, perex@perex.cz, tiwai@suse.com, p.zabel@pengutronix.de, biju.das.jz@bp.renesas.com Cc: claudiu.beznea@tuxon.dev, linux-renesas-soc@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org, Claudiu Beznea Subject: [PATCH v4 01/24] clk: versaclock3: Prepare for the addition of 5L35023 device Date: Tue, 10 Dec 2024 19:09:30 +0200 Message-Id: <20241210170953.2936724-2-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20241210170953.2936724-1-claudiu.beznea.uj@bp.renesas.com> References: <20241210170953.2936724-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea The 5P35023 and 5L35035 Versa 3 clock generator variants are different but the versaclock3 driver could be used with small adjustments. The features that are implemented in driver and differs b/w variants are the PLL2 Fvco and clock sel bit for SE2 clock. Adjust the driver to prepare for the addition of 5L35023 device. Reviewed-by: Biju Das Signed-off-by: Claudiu Beznea --- Changes in v4: - none Changes in v3: - collected tags Changes in v2: - none drivers/clk/clk-versaclock3.c | 61 ++++++++++++++++++++++++----------- 1 file changed, 43 insertions(+), 18 deletions(-) diff --git a/drivers/clk/clk-versaclock3.c b/drivers/clk/clk-versaclock3.c index 76d7ea1964c3..1398d16df5d0 100644 --- a/drivers/clk/clk-versaclock3.c +++ b/drivers/clk/clk-versaclock3.c @@ -78,9 +78,6 @@ #define VC3_PLL1_VCO_MIN 300000000UL #define VC3_PLL1_VCO_MAX 600000000UL -#define VC3_PLL2_VCO_MIN 400000000UL -#define VC3_PLL2_VCO_MAX 1200000000UL - #define VC3_PLL3_VCO_MIN 300000000UL #define VC3_PLL3_VCO_MAX 800000000UL @@ -147,9 +144,13 @@ struct vc3_pfd_data { u8 mdiv2_bitmsk; }; +struct vc3_vco { + unsigned long min; + unsigned long max; +}; + struct vc3_pll_data { - unsigned long vco_min; - unsigned long vco_max; + struct vc3_vco vco; u8 num; u8 int_div_msb_offs; u8 int_div_lsb_offs; @@ -166,12 +167,17 @@ struct vc3_div_data { struct vc3_hw_data { struct clk_hw hw; struct regmap *regmap; - const void *data; + void *data; u32 div_int; u32 div_frc; }; +struct vc3_hw_cfg { + struct vc3_vco pll2_vco; + u32 se2_clk_sel_msk; +}; + static const struct clk_div_table div1_divs[] = { { .val = 0, .div = 1, }, { .val = 1, .div = 4, }, { .val = 2, .div = 5, }, { .val = 3, .div = 6, }, @@ -386,10 +392,10 @@ static long vc3_pll_round_rate(struct clk_hw *hw, unsigned long rate, const struct vc3_pll_data *pll = vc3->data; u64 div_frc; - if (rate < pll->vco_min) - rate = pll->vco_min; - if (rate > pll->vco_max) - rate = pll->vco_max; + if (rate < pll->vco.min) + rate = pll->vco.min; + if (rate > pll->vco.max) + rate = pll->vco.max; vc3->div_int = rate / *parent_rate; @@ -680,8 +686,10 @@ static struct vc3_hw_data clk_pll[] = { .num = VC3_PLL1, .int_div_msb_offs = VC3_PLL1_LOOP_FILTER_N_DIV_MSB, .int_div_lsb_offs = VC3_PLL1_VCO_N_DIVIDER, - .vco_min = VC3_PLL1_VCO_MIN, - .vco_max = VC3_PLL1_VCO_MAX + .vco = { + .min = VC3_PLL1_VCO_MIN, + .max = VC3_PLL1_VCO_MAX + } }, .hw.init = &(struct clk_init_data) { .name = "pll1", @@ -698,8 +706,6 @@ static struct vc3_hw_data clk_pll[] = { .num = VC3_PLL2, .int_div_msb_offs = VC3_PLL2_FB_INT_DIV_MSB, .int_div_lsb_offs = VC3_PLL2_FB_INT_DIV_LSB, - .vco_min = VC3_PLL2_VCO_MIN, - .vco_max = VC3_PLL2_VCO_MAX }, .hw.init = &(struct clk_init_data) { .name = "pll2", @@ -716,8 +722,10 @@ static struct vc3_hw_data clk_pll[] = { .num = VC3_PLL3, .int_div_msb_offs = VC3_PLL3_LOOP_FILTER_N_DIV_MSB, .int_div_lsb_offs = VC3_PLL3_N_DIVIDER, - .vco_min = VC3_PLL3_VCO_MIN, - .vco_max = VC3_PLL3_VCO_MAX + .vco = { + .min = VC3_PLL3_VCO_MIN, + .max = VC3_PLL3_VCO_MAX + } }, .hw.init = &(struct clk_init_data) { .name = "pll3", @@ -901,7 +909,6 @@ static struct vc3_hw_data clk_mux[] = { [VC3_SE2_MUX] = { .data = &(struct vc3_clk_data) { .offs = VC3_SE2_CTRL_REG0, - .bitmsk = VC3_SE2_CTRL_REG0_SE2_CLK_SEL }, .hw.init = &(struct clk_init_data) { .name = "se2_mux", @@ -982,6 +989,7 @@ static int vc3_probe(struct i2c_client *client) { struct device *dev = &client->dev; u8 settings[NUM_CONFIG_REGISTERS]; + const struct vc3_hw_cfg *data; struct regmap *regmap; const char *name; int ret, i; @@ -1029,9 +1037,16 @@ static int vc3_probe(struct i2c_client *client) clk_pfd[i].hw.init->name); } + data = i2c_get_match_data(client); + /* Register pll's */ for (i = 0; i < ARRAY_SIZE(clk_pll); i++) { clk_pll[i].regmap = regmap; + if (i == VC3_PLL2) { + struct vc3_pll_data *pll_data = clk_pll[i].data; + + pll_data->vco = data->pll2_vco; + } ret = devm_clk_hw_register(dev, &clk_pll[i].hw); if (ret) return dev_err_probe(dev, ret, "%s failed\n", @@ -1059,6 +1074,11 @@ static int vc3_probe(struct i2c_client *client) /* Register clk muxes */ for (i = 0; i < ARRAY_SIZE(clk_mux); i++) { clk_mux[i].regmap = regmap; + if (i == VC3_SE2_MUX) { + struct vc3_clk_data *clk_data = clk_mux[i].data; + + clk_data->bitmsk = data->se2_clk_sel_msk; + } ret = devm_clk_hw_register(dev, &clk_mux[i].hw); if (ret) return dev_err_probe(dev, ret, "%s failed\n", @@ -1108,8 +1128,13 @@ static int vc3_probe(struct i2c_client *client) return ret; } +static const struct vc3_hw_cfg vc3_5p = { + .pll2_vco = { .min = 400000000UL, .max = 1200000000UL }, + .se2_clk_sel_msk = BIT(6), +}; + static const struct of_device_id dev_ids[] = { - { .compatible = "renesas,5p35023" }, + { .compatible = "renesas,5p35023", .data = &vc3_5p }, { /* Sentinel */ } }; MODULE_DEVICE_TABLE(of, dev_ids);