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Message-ID: <57AD9985.7020809@ti.com>
Date: Fri, 12 Aug 2016 15:10:21 +0530
From: Kishon Vijay Abraham I <kishon@...com>
To: Icenowy Zheng <icenowy@...c.xyz>, Rob Herring <robh+dt@...nel.org>,
Maxime Ripard <maxime.ripard@...e-electrons.com>,
Chen-Yu Tsai <wens@...e.org>,
Alan Stern <stern@...land.harvard.edu>,
Hans de Goede <hdegoede@...hat.com>
CC: Mark Rutland <mark.rutland@....com>,
Tony Prisk <linux@...sktech.co.nz>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Reinder de Haan <patchesrdh@...as.com>,
<devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>, <linux-usb@...r.kernel.org>
Subject: Re: [PATCH RESEND v2 2/3] phy: sun4i: add support for A64 usb phy
On Friday 12 August 2016 08:36 AM, Icenowy Zheng wrote:
> There's something unknown in the pmu part that shared with H3.
> It's renamed as PMU_UNK1 from PMU_UNK_H3.
>
> Signed-off-by: Icenowy Zheng <icenowy@...c.xyz>
Fixed the following checkpatch warning and merged this to linux-phy tree.
WARNING: line over 80 characters
#311: FILE: drivers/phy/phy-sun4i-usb.c:794:
+ { .compatible = "allwinner,sun50i-a64-usb-phy", .data = &sun50i_a64_cfg},
Thanks
Kishon
> ---
> drivers/phy/phy-sun4i-usb.c | 34 ++++++++++++++++++++++++++++------
> 1 file changed, 28 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/phy/phy-sun4i-usb.c b/drivers/phy/phy-sun4i-usb.c
> index 0a45bc6..a4db658 100644
> --- a/drivers/phy/phy-sun4i-usb.c
> +++ b/drivers/phy/phy-sun4i-usb.c
> @@ -49,7 +49,7 @@
> #define REG_PHYCTL_A33 0x10
> #define REG_PHY_UNK_H3 0x20
>
> -#define REG_PMU_UNK_H3 0x10
> +#define REG_PMU_UNK1 0x10
>
> #define PHYCTL_DATA BIT(7)
>
> @@ -97,6 +97,7 @@ enum sun4i_usb_phy_type {
> sun6i_a31_phy,
> sun8i_a33_phy,
> sun8i_h3_phy,
> + sun50i_a64_phy,
> };
>
> struct sun4i_usb_phy_cfg {
> @@ -105,6 +106,7 @@ struct sun4i_usb_phy_cfg {
> u32 disc_thresh;
> u8 phyctl_offset;
> bool dedicated_clocks;
> + bool enable_pmu_unk1;
> };
>
> struct sun4i_usb_phy_data {
> @@ -180,8 +182,9 @@ static void sun4i_usb_phy_write(struct sun4i_usb_phy *phy, u32 addr, u32 data,
>
> mutex_lock(&phy_data->mutex);
>
> - if (phy_data->cfg->type == sun8i_a33_phy) {
> - /* A33 needs us to set phyctl to 0 explicitly */
> + if (phy_data->cfg->type == sun8i_a33_phy ||
> + phy_data->cfg->type == sun50i_a64_phy) {
> + /* A33 or A64 needs us to set phyctl to 0 explicitly */
> writel(0, phyctl);
> }
>
> @@ -255,14 +258,16 @@ static int sun4i_usb_phy_init(struct phy *_phy)
> return ret;
> }
>
> + if (data->cfg->enable_pmu_unk1) {
> + val = readl(phy->pmu + REG_PMU_UNK1);
> + writel(val & ~2, phy->pmu + REG_PMU_UNK1);
> + }
> +
> if (data->cfg->type == sun8i_h3_phy) {
> if (phy->index == 0) {
> val = readl(data->base + REG_PHY_UNK_H3);
> writel(val & ~1, data->base + REG_PHY_UNK_H3);
> }
> -
> - val = readl(phy->pmu + REG_PMU_UNK_H3);
> - writel(val & ~2, phy->pmu + REG_PMU_UNK_H3);
> } else {
> /* Enable USB 45 Ohm resistor calibration */
> if (phy->index == 0)
> @@ -713,6 +718,7 @@ static const struct sun4i_usb_phy_cfg sun4i_a10_cfg = {
> .disc_thresh = 3,
> .phyctl_offset = REG_PHYCTL_A10,
> .dedicated_clocks = false,
> + .enable_pmu_unk1 = false,
> };
>
> static const struct sun4i_usb_phy_cfg sun5i_a13_cfg = {
> @@ -721,6 +727,7 @@ static const struct sun4i_usb_phy_cfg sun5i_a13_cfg = {
> .disc_thresh = 2,
> .phyctl_offset = REG_PHYCTL_A10,
> .dedicated_clocks = false,
> + .enable_pmu_unk1 = false,
> };
>
> static const struct sun4i_usb_phy_cfg sun6i_a31_cfg = {
> @@ -729,6 +736,7 @@ static const struct sun4i_usb_phy_cfg sun6i_a31_cfg = {
> .disc_thresh = 3,
> .phyctl_offset = REG_PHYCTL_A10,
> .dedicated_clocks = true,
> + .enable_pmu_unk1 = false,
> };
>
> static const struct sun4i_usb_phy_cfg sun7i_a20_cfg = {
> @@ -737,6 +745,7 @@ static const struct sun4i_usb_phy_cfg sun7i_a20_cfg = {
> .disc_thresh = 2,
> .phyctl_offset = REG_PHYCTL_A10,
> .dedicated_clocks = false,
> + .enable_pmu_unk1 = false,
> };
>
> static const struct sun4i_usb_phy_cfg sun8i_a23_cfg = {
> @@ -745,6 +754,7 @@ static const struct sun4i_usb_phy_cfg sun8i_a23_cfg = {
> .disc_thresh = 3,
> .phyctl_offset = REG_PHYCTL_A10,
> .dedicated_clocks = true,
> + .enable_pmu_unk1 = false,
> };
>
> static const struct sun4i_usb_phy_cfg sun8i_a33_cfg = {
> @@ -753,6 +763,7 @@ static const struct sun4i_usb_phy_cfg sun8i_a33_cfg = {
> .disc_thresh = 3,
> .phyctl_offset = REG_PHYCTL_A33,
> .dedicated_clocks = true,
> + .enable_pmu_unk1 = false,
> };
>
> static const struct sun4i_usb_phy_cfg sun8i_h3_cfg = {
> @@ -760,6 +771,16 @@ static const struct sun4i_usb_phy_cfg sun8i_h3_cfg = {
> .type = sun8i_h3_phy,
> .disc_thresh = 3,
> .dedicated_clocks = true,
> + .enable_pmu_unk1 = true,
> +};
> +
> +static const struct sun4i_usb_phy_cfg sun50i_a64_cfg = {
> + .num_phys = 2,
> + .type = sun50i_a64_phy,
> + .disc_thresh = 3,
> + .phyctl_offset = REG_PHYCTL_A33,
> + .dedicated_clocks = true,
> + .enable_pmu_unk1 = true,
> };
>
> static const struct of_device_id sun4i_usb_phy_of_match[] = {
> @@ -770,6 +791,7 @@ static const struct of_device_id sun4i_usb_phy_of_match[] = {
> { .compatible = "allwinner,sun8i-a23-usb-phy", .data = &sun8i_a23_cfg },
> { .compatible = "allwinner,sun8i-a33-usb-phy", .data = &sun8i_a33_cfg },
> { .compatible = "allwinner,sun8i-h3-usb-phy", .data = &sun8i_h3_cfg },
> + { .compatible = "allwinner,sun50i-a64-usb-phy", .data = &sun50i_a64_cfg},
> { },
> };
> MODULE_DEVICE_TABLE(of, sun4i_usb_phy_of_match);
>
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