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Date: Fri, 24 Jul 2015 11:01:59 +0800 From: James Liao <jamesjj.liao@...iatek.com> To: Matthias Brugger <matthias.bgg@...il.com>, Mike Turquette <mturquette@...libre.com>, Stephen Boyd <sboyd@...eaurora.org>, Heiko Stubner <heiko@...ech.de> CC: <srv_heupstream@...iatek.com>, Daniel Kurtz <djkurtz@...omium.org>, Ricky Liang <jcliang@...omium.org>, Rob Herring <robh+dt@...nel.org>, Sascha Hauer <kernel@...gutronix.de>, <devicetree@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>, <linux-mediatek@...ts.infradead.org>, James Liao <jamesjj.liao@...iatek.com> Subject: [PATCH v4 1/7] clk: mediatek: Add fixed clocks support for Mediatek SoC. This patch adds fixed clocks support by using CCF fixed-rate clock implementation. Signed-off-by: James Liao <jamesjj.liao@...iatek.com> --- drivers/clk/mediatek/clk-mtk.c | 23 +++++++++++++++++++++++ drivers/clk/mediatek/clk-mtk.h | 19 ++++++++++++++++++- 2 files changed, 41 insertions(+), 1 deletion(-) diff --git a/drivers/clk/mediatek/clk-mtk.c b/drivers/clk/mediatek/clk-mtk.c index 18444ae..f8307c3 100644 --- a/drivers/clk/mediatek/clk-mtk.c +++ b/drivers/clk/mediatek/clk-mtk.c @@ -49,6 +49,29 @@ err_out: return NULL; } +void mtk_clk_register_fixed_clks(const struct mtk_fixed_clk *clks, int num, + struct clk_onecell_data *clk_data) +{ + int i; + struct clk *clk; + + for (i = 0; i < num; i++) { + const struct mtk_fixed_clk *rc = &clks[i]; + + clk = clk_register_fixed_rate(NULL, rc->name, rc->parent, + rc->parent ? 0 : CLK_IS_ROOT, rc->rate); + + if (IS_ERR(clk)) { + pr_err("Failed to register clk %s: %ld\n", + rc->name, PTR_ERR(clk)); + continue; + } + + if (clk_data) + clk_data->clks[rc->id] = clk; + } +} + void mtk_clk_register_factors(const struct mtk_fixed_factor *clks, int num, struct clk_onecell_data *clk_data) { diff --git a/drivers/clk/mediatek/clk-mtk.h b/drivers/clk/mediatek/clk-mtk.h index 9dda9d8..f083dfc 100644 --- a/drivers/clk/mediatek/clk-mtk.h +++ b/drivers/clk/mediatek/clk-mtk.h @@ -25,6 +25,23 @@ #define MHZ (1000 * 1000) +struct mtk_fixed_clk { + int id; + const char *name; + const char *parent; + unsigned long rate; +}; + +#define FIXED_CLK(_id, _name, _parent, _rate) { \ + .id = _id, \ + .name = _name, \ + .parent = _parent, \ + .rate = _rate, \ + } + +void mtk_clk_register_fixed_clks(const struct mtk_fixed_clk *clks, + int num, struct clk_onecell_data *clk_data); + struct mtk_fixed_factor { int id; const char *name; @@ -41,7 +58,7 @@ struct mtk_fixed_factor { .div = _div, \ } -extern void mtk_clk_register_factors(const struct mtk_fixed_factor *clks, +void mtk_clk_register_factors(const struct mtk_fixed_factor *clks, int num, struct clk_onecell_data *clk_data); struct mtk_composite { -- 1.8.1.1.dirty -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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