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From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: linux-i2c@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org,
	Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>,
	Wolfram Sang <wsa+renesas@sang-engineering.com>
Subject: [PATCH 2/2] i2c: sh_mobile: use new clock calculation formulas for Gen3
Date: Mon,  4 Feb 2019 23:00:10 +0100
Message-ID: <20190204220010.5671-3-wsa+renesas@sang-engineering.com> (raw)
In-Reply-To: <20190204220010.5671-1-wsa+renesas@sang-engineering.com>

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>
---
 drivers/i2c/busses/i2c-sh_mobile.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c
index 875cc5d09aa2..3c1552f14bec 100644
--- a/drivers/i2c/busses/i2c-sh_mobile.c
+++ b/drivers/i2c/busses/i2c-sh_mobile.c
@@ -806,11 +806,11 @@ 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 },
 	{},
 };
-- 
2.19.1


  parent reply index

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-04 22:00 [PATCH 0/2] i2c: sh_mobile: updates to compatibles Wolfram Sang
2019-02-04 22:00 ` [PATCH 1/2] i2c: sh_mobile: sort compatible entries Wolfram Sang
2019-02-05 13:14   ` Geert Uytterhoeven
2019-02-05 14:31   ` Simon Horman
2019-02-08 21:29   ` Wolfram Sang
2019-02-04 22:00 ` Wolfram Sang [this message]
2019-02-05 13:16   ` [PATCH 2/2] i2c: sh_mobile: use new clock calculation formulas for Gen3 Geert Uytterhoeven
2019-02-05 16:47     ` Wolfram Sang
2019-02-05 14:33   ` Simon Horman
2019-02-08 21:29   ` Wolfram Sang

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