Currently, the sunxi clock driver gets the name for the base factor clock of divs clocks from the name field in factors_data. This prevents reusing of the factor clock for clocks with same properties, but different name. This commit makes the divs setup function try to get a name from clock-output-names in the devicetree. It also removes the name field where possible and merges the sun4i PLL5 and PLL6 clocks. Signed-off-by: Jens Kuske <jenskuske@xxxxxxxxx> --- drivers/clk/sunxi/clk-sunxi.c | 38 +++++++++++++++++++++++++++----------- 1 file changed, 27 insertions(+), 11 deletions(-) diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c index 9c79af0c..270de42 100644 --- a/drivers/clk/sunxi/clk-sunxi.c +++ b/drivers/clk/sunxi/clk-sunxi.c @@ -704,21 +704,12 @@ static const struct factors_data sun4i_pll5_data __initconst = { .enable = 31, .table = &sun4i_pll5_config, .getter = sun4i_get_pll5_factors, - .name = "pll5", -}; - -static const struct factors_data sun4i_pll6_data __initconst = { - .enable = 31, - .table = &sun4i_pll5_config, - .getter = sun4i_get_pll5_factors, - .name = "pll6", }; static const struct factors_data sun6i_a31_pll6_data __initconst = { .enable = 31, .table = &sun6i_a31_pll6_config, .getter = sun6i_a31_get_pll6_factors, - .name = "pll6x2", }; static const struct factors_data sun5i_a13_ahb_data __initconst = { @@ -902,6 +893,7 @@ struct gates_data { #define SUNXI_DIVS_MAX_QTY 4 #define SUNXI_DIVISOR_WIDTH 2 +#define SUNXI_DIVS_BASE_NAME_MAX_LEN 8 struct divs_data { const struct factors_data *factors; /* data for the factor clock */ @@ -941,7 +933,7 @@ static const struct divs_data pll5_divs_data __initconst = { }; static const struct divs_data pll6_divs_data __initconst = { - .factors = &sun4i_pll6_data, + .factors = &sun4i_pll5_data, .ndivs = 4, .div = { { .shift = 0, .table = pll6_sata_tbl, .gate = 14 }, /* M, SATA */ @@ -983,6 +975,8 @@ static void __init sunxi_divs_clk_setup(struct device_node *node, struct clk_gate *gate = NULL; struct clk_fixed_factor *fix_factor; struct clk_divider *divider; + struct factors_data factors = *data->factors; + char base_name[SUNXI_DIVS_BASE_NAME_MAX_LEN]; void __iomem *reg; int ndivs = SUNXI_DIVS_MAX_QTY, i = 0; int flags, clkflags; @@ -991,8 +985,30 @@ static void __init sunxi_divs_clk_setup(struct device_node *node, if (data->ndivs) ndivs = data->ndivs; + /* Try to find a name for base factor clock */ + for (i = 0; i < ndivs; i++) { + if (data->div[i].self) { + of_property_read_string_index(node, "clock-output-names", + i, &factors.name); + break; + } + } + /* If we don't have a .self clk use the first output-name up to '_' */ + if (factors.name == NULL) { + of_property_read_string_index(node, "clock-output-names", + 0, &clk_name); + + for (i = 0; i < SUNXI_DIVS_BASE_NAME_MAX_LEN - 1 && + clk_name[i] != '_' && + clk_name[i] != '\0'; i++) + base_name[i] = clk_name[i]; + + base_name[i] = '\0'; + factors.name = base_name; + } + /* Set up factor clock that we will be dividing */ - pclk = sunxi_factors_clk_setup(node, data->factors); + pclk = sunxi_factors_clk_setup(node, &factors); parent = __clk_get_name(pclk); reg = of_iomap(node, 0); -- 2.6.2 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html