From mboxrd@z Thu Jan 1 00:00:00 1970 From: Geert Uytterhoeven Subject: [PATCH/RFC v3 11/22] clk: renesas: r8a7778: Obtain mode pin values using R-Car RST driver Date: Wed, 1 Jun 2016 21:21:09 +0200 Message-ID: <1464808880-343-12-git-send-email-geert+renesas@glider.be> References: <1464808880-343-1-git-send-email-geert+renesas@glider.be> Return-path: In-Reply-To: <1464808880-343-1-git-send-email-geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Simon Horman , Magnus Damm , Laurent Pinchart , Philipp Zabel , Michael Turquette , Stephen Boyd , Dirk Behme Cc: linux-renesas-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Geert Uytterhoeven List-Id: devicetree@vger.kernel.org Obtain the values of the mode pins from the R-Car RST driver, which relies on the presence in DT of a device node for the RESET/WDT module. Signed-off-by: Geert Uytterhoeven --- v3: - New. --- drivers/clk/renesas/clk-r8a7778.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/clk/renesas/clk-r8a7778.c b/drivers/clk/renesas/clk-r8a7778.c index 40e3a501a50e200f..07ea411098a75ad1 100644 --- a/drivers/clk/renesas/clk-r8a7778.c +++ b/drivers/clk/renesas/clk-r8a7778.c @@ -12,6 +12,7 @@ #include #include #include +#include struct r8a7778_cpg { struct clk_onecell_data data; @@ -83,6 +84,18 @@ static void __init r8a7778_cpg_clocks_init(struct device_node *np) struct clk **clks; unsigned int i; int num_clks; + u32 mode; + + if (rcar_rst_read_mode_pins(&mode)) + return; + + BUG_ON(!(mode & BIT(19))); + + cpg_mode_rates = (!!(mode & BIT(18)) << 2) | + (!!(mode & BIT(12)) << 1) | + (!!(mode & BIT(11))); + cpg_mode_divs = (!!(mode & BIT(2)) << 1) | + (!!(mode & BIT(1))); num_clks = of_property_count_strings(np, "clock-output-names"); if (num_clks < 0) { -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html