Re: [PATCH] i2c: mediatek: Get device clock-stretch time via dts
From: Qii Wang <qii.wang@mediatek.com>
Date: 2021-03-02 14:11:01
Also in:
linux-arm-kernel, linux-mediatek, lkml
From: Qii Wang <qii.wang@mediatek.com>
Date: 2021-03-02 14:11:01
Also in:
linux-arm-kernel, linux-mediatek, lkml
Hi, On Tue, 2021-03-02 at 19:30 +0800, Ikjoon Jang wrote:
Hi Qii,quoted
@@ -1171,6 +1173,8 @@ static int mtk_i2c_parse_dt(struct device_node *np, struct mtk_i2c *i2c) if (i2c->clk_src_div == 0) return -EINVAL; + of_property_read_u32(np, "clock-stretch-ns", &i2c->clock_stretch_ns); +I think this new property "clock-stretch-ns" is for the same purpose of "i2c-scl-falling-time-ns" + "i2c-scl-rising-time-ns" defined in Documentation/devicetree/bindings/i2c/i2c.txt?
I haven't find the corresponding instructions;and this patch is for the problem caused by clock-stretch when the scl is pulled.
quoted
i2c->have_pmic = of_property_read_bool(np, "mediatek,have-pmic"); i2c->use_push_pull = of_property_read_bool(np, "mediatek,use-push-pull"); -- 1.9.1 _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek