From: Wolfram Sang <wsa+renesas@sang-engineering.com>
Date: Mon, 4 Feb 2019 22:00:10 +0000 (+0100)
Subject: i2c: sh_mobile: use new clock calculation formulas for Gen3
X-Git-Tag: v5.1-rc1~109^2~31
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=e8a27567509b2439b3d8e5937a11483fb25c0f0c;p=thirdparty%2Fkernel%2Flinux.git

i2c: sh_mobile: use new clock calculation formulas for Gen3

We could finally measure the clock on an Ebisu board. The new formula
gives way better results, i.e. 100kHz instead of 106kHz and 400kHz
instead of 387kHz. Switch to these formulas for all Gen3 SoCs.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---

diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c
index 0e834d97ca51f..7ef3b095f7aeb 100644
--- a/drivers/i2c/busses/i2c-sh_mobile.c
+++ b/drivers/i2c/busses/i2c-sh_mobile.c
@@ -773,11 +773,11 @@ static const struct of_device_id sh_mobile_i2c_dt_ids[] = {
 	{ .compatible = "renesas,iic-r8a7792", .data = &fast_clock_dt_config },
 	{ .compatible = "renesas,iic-r8a7793", .data = &fast_clock_dt_config },
 	{ .compatible = "renesas,iic-r8a7794", .data = &fast_clock_dt_config },
-	{ .compatible = "renesas,iic-r8a7795", .data = &fast_clock_dt_config },
-	{ .compatible = "renesas,iic-r8a77990", .data = &fast_clock_dt_config },
+	{ .compatible = "renesas,iic-r8a7795", .data = &v2_freq_calc_dt_config },
+	{ .compatible = "renesas,iic-r8a77990", .data = &v2_freq_calc_dt_config },
 	{ .compatible = "renesas,iic-sh73a0", .data = &fast_clock_dt_config },
 	{ .compatible = "renesas,rcar-gen2-iic", .data = &fast_clock_dt_config },
-	{ .compatible = "renesas,rcar-gen3-iic", .data = &fast_clock_dt_config },
+	{ .compatible = "renesas,rcar-gen3-iic", .data = &v2_freq_calc_dt_config },
 	{ .compatible = "renesas,rmobile-iic", .data = &default_dt_config },
 	{},
 };