diff mbox series

[v2,08/15] thermal/drivers/tsens: Drop single-cell code for msm8939

Message ID 20221204055909.1351895-9-dmitry.baryshkov@linaro.org
State New
Headers show
Series thermal/drivers/tsens: specify nvmem cells in DT rather than parsing them manually | expand

Commit Message

Dmitry Baryshkov Dec. 4, 2022, 5:59 a.m. UTC 
There is no dtsi file for msm8939 in the kernel sources. Drop the
compatibility with unofficial dtsi and remove support for handling the
single-cell calibration data on msm8939.

Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/thermal/qcom/tsens-v0_1.c | 146 ++----------------------------
 1 file changed, 7 insertions(+), 139 deletions(-)

Comments

Dmitry Baryshkov Dec. 7, 2022, 7:36 p.m. UTC | #1 
On Mon, 5 Dec 2022 at 14:42, Bryan O'Donoghue
<bryan.odonoghue@linaro.org> wrote:
>
> On 04/12/2022 19:25, Vincent Knecht wrote:
> > Le dimanche 04 décembre 2022 à 19:42 +0100, Vincent Knecht a écrit :
> >> Le dimanche 04 décembre 2022 à 07:59 +0200, Dmitry Baryshkov a écrit :
> >>> There is no dtsi file for msm8939 in the kernel sources. Drop the
> >>> compatibility with unofficial dtsi and remove support for handling the
> >>> single-cell calibration data on msm8939.
> >>
> >> Could one invoke a "msm8916-like exemption" here ?

Colleagues, I know that it adds a bit of pain on your side, however
I'd also kindly ask to rework the dtsi. I'd really like to drop as
much of the 'legacy parsing' as possible. The existing code is painful
to handle already, it is redundant, self-duplicated, etc.
See, how easier is to handle the DT cells + nvmem_cell API vs old
shifts and masks code.

> >
> > Ignore that, guess we'll just have to implement it like there:
> > https://lore.kernel.org/linux-arm-msm/20221204055909.1351895-9-dmitry.baryshkov@linaro.org/T/#m19cffb13114b6f4f153058e3e7a1943251acaf81
> >
> >> Also, msm8939.dtsi was submitted once [1],
> >> and if helps we could send a v2 this month...
> >>
> >> [1] https://lore.kernel.org/linux-arm-msm/20220419010903.3109514-1-bryan.odonoghue@linaro.org/
> >
> > Offer still stands, the current community one is here:
> > https://github.com/msm8916-mainline/linux/blob/msm8916/6.1-rc7/arch/arm64/boot/dts/qcom/msm8939.dtsi
> >
> >
> >
>
> heh - here's my current
>
> https://git.linaro.org/landing-teams/working/qualcomm/kernel.git/log/?h=tracking-qcomlt-msm8939
>
> I've been working on clearing out blockages in legacy yaml conversions
>
> phy
> mdss-dsi-ctrl
>
> which thrown up errors on 8939
>
> I took a good bunch of feedback from the list for v1 into that dtsi -
> there's not much left blocking v2.
>
> I'll see if I can get that out this week
>
> ---
> bod
>
>
diff mbox series

Patch

diff --git a/drivers/thermal/qcom/tsens-v0_1.c b/drivers/thermal/qcom/tsens-v0_1.c
index 56c4e47db0c0..a273a0643053 100644
--- a/drivers/thermal/qcom/tsens-v0_1.c
+++ b/drivers/thermal/qcom/tsens-v0_1.c
@@ -48,63 +48,6 @@ 
 #define MSM8916_CAL_SEL_MASK	0xe0000000
 #define MSM8916_CAL_SEL_SHIFT	29
 
-/* eeprom layout data for 8939 */
-#define MSM8939_BASE0_MASK	0x000000ff
-#define MSM8939_BASE1_MASK	0xff000000
-#define MSM8939_BASE0_SHIFT	0
-#define MSM8939_BASE1_SHIFT	24
-
-#define MSM8939_S0_P1_MASK	0x000001f8
-#define MSM8939_S1_P1_MASK	0x001f8000
-#define MSM8939_S2_P1_MASK_0_4	0xf8000000
-#define MSM8939_S2_P1_MASK_5	0x00000001
-#define MSM8939_S3_P1_MASK	0x00001f80
-#define MSM8939_S4_P1_MASK	0x01f80000
-#define MSM8939_S5_P1_MASK	0x00003f00
-#define MSM8939_S6_P1_MASK	0x03f00000
-#define MSM8939_S7_P1_MASK	0x0000003f
-#define MSM8939_S8_P1_MASK	0x0003f000
-#define MSM8939_S9_P1_MASK	0x07e00000
-
-#define MSM8939_S0_P2_MASK	0x00007e00
-#define MSM8939_S1_P2_MASK	0x07e00000
-#define MSM8939_S2_P2_MASK	0x0000007e
-#define MSM8939_S3_P2_MASK	0x0007e000
-#define MSM8939_S4_P2_MASK	0x7e000000
-#define MSM8939_S5_P2_MASK	0x000fc000
-#define MSM8939_S6_P2_MASK	0xfc000000
-#define MSM8939_S7_P2_MASK	0x00000fc0
-#define MSM8939_S8_P2_MASK	0x00fc0000
-#define MSM8939_S9_P2_MASK_0_4	0xf8000000
-#define MSM8939_S9_P2_MASK_5	0x00002000
-
-#define MSM8939_S0_P1_SHIFT	3
-#define MSM8939_S1_P1_SHIFT	15
-#define MSM8939_S2_P1_SHIFT_0_4	27
-#define MSM8939_S2_P1_SHIFT_5	0
-#define MSM8939_S3_P1_SHIFT	7
-#define MSM8939_S4_P1_SHIFT	19
-#define MSM8939_S5_P1_SHIFT	8
-#define MSM8939_S6_P1_SHIFT	20
-#define MSM8939_S7_P1_SHIFT	0
-#define MSM8939_S8_P1_SHIFT	12
-#define MSM8939_S9_P1_SHIFT	21
-
-#define MSM8939_S0_P2_SHIFT	9
-#define MSM8939_S1_P2_SHIFT	21
-#define MSM8939_S2_P2_SHIFT	1
-#define MSM8939_S3_P2_SHIFT	13
-#define MSM8939_S4_P2_SHIFT	25
-#define MSM8939_S5_P2_SHIFT	14
-#define MSM8939_S6_P2_SHIFT	26
-#define MSM8939_S7_P2_SHIFT	6
-#define MSM8939_S8_P2_SHIFT	18
-#define MSM8939_S9_P2_SHIFT_0_4	27
-#define MSM8939_S9_P2_SHIFT_5	13
-
-#define MSM8939_CAL_SEL_MASK	0x7
-#define MSM8939_CAL_SEL_SHIFT	0
-
 /* eeprom layout data for 8974 */
 #define BASE1_MASK		0xff
 #define S0_P1_MASK		0x3f00
@@ -284,81 +227,6 @@  static int calibrate_8916(struct tsens_priv *priv)
 	return 0;
 }
 
-static int calibrate_8939(struct tsens_priv *priv)
-{
-	int base0 = 0, base1 = 0, i;
-	u32 p1[10], p2[10];
-	int mode = 0;
-	u32 *qfprom_cdata;
-	u32 cdata[6];
-	int ret;
-
-	ret = tsens_calibrate_common(priv);
-	if (!ret)
-		return 0;
-
-	qfprom_cdata = (u32 *)qfprom_read(priv->dev, "calib");
-	if (IS_ERR(qfprom_cdata))
-		return PTR_ERR(qfprom_cdata);
-
-	/* Mapping between qfprom nvmem and calibration data */
-	cdata[0] = qfprom_cdata[12];
-	cdata[1] = qfprom_cdata[13];
-	cdata[2] = qfprom_cdata[0];
-	cdata[3] = qfprom_cdata[1];
-	cdata[4] = qfprom_cdata[22];
-	cdata[5] = qfprom_cdata[21];
-
-	mode = (cdata[0] & MSM8939_CAL_SEL_MASK) >> MSM8939_CAL_SEL_SHIFT;
-	dev_dbg(priv->dev, "calibration mode is %d\n", mode);
-
-	switch (mode) {
-	case TWO_PT_CALIB:
-		base1 = (cdata[3] & MSM8939_BASE1_MASK) >> MSM8939_BASE1_SHIFT;
-		p2[0] = (cdata[0] & MSM8939_S0_P2_MASK) >> MSM8939_S0_P2_SHIFT;
-		p2[1] = (cdata[0] & MSM8939_S1_P2_MASK) >> MSM8939_S1_P2_SHIFT;
-		p2[2] = (cdata[1] & MSM8939_S2_P2_MASK) >> MSM8939_S2_P2_SHIFT;
-		p2[3] = (cdata[1] & MSM8939_S3_P2_MASK) >> MSM8939_S3_P2_SHIFT;
-		p2[4] = (cdata[1] & MSM8939_S4_P2_MASK) >> MSM8939_S4_P2_SHIFT;
-		p2[5] = (cdata[2] & MSM8939_S5_P2_MASK) >> MSM8939_S5_P2_SHIFT;
-		p2[6] = (cdata[2] & MSM8939_S6_P2_MASK) >> MSM8939_S6_P2_SHIFT;
-		p2[7] = (cdata[3] & MSM8939_S7_P2_MASK) >> MSM8939_S7_P2_SHIFT;
-		p2[8] = (cdata[3] & MSM8939_S8_P2_MASK) >> MSM8939_S8_P2_SHIFT;
-		p2[9] = (cdata[4] & MSM8939_S9_P2_MASK_0_4) >> MSM8939_S9_P2_SHIFT_0_4;
-		p2[9] |= ((cdata[5] & MSM8939_S9_P2_MASK_5) >> MSM8939_S9_P2_SHIFT_5) << 5;
-		for (i = 0; i < priv->num_sensors; i++)
-			p2[i] = (base1 + p2[i]) << 2;
-		fallthrough;
-	case ONE_PT_CALIB2:
-		base0 = (cdata[2] & MSM8939_BASE0_MASK) >> MSM8939_BASE0_SHIFT;
-		p1[0] = (cdata[0] & MSM8939_S0_P1_MASK) >> MSM8939_S0_P1_SHIFT;
-		p1[1] = (cdata[0] & MSM8939_S1_P1_MASK) >> MSM8939_S1_P1_SHIFT;
-		p1[2] = (cdata[0] & MSM8939_S2_P1_MASK_0_4) >> MSM8939_S2_P1_SHIFT_0_4;
-		p1[2] |= ((cdata[1] & MSM8939_S2_P1_MASK_5) >> MSM8939_S2_P1_SHIFT_5) << 5;
-		p1[3] = (cdata[1] & MSM8939_S3_P1_MASK) >> MSM8939_S3_P1_SHIFT;
-		p1[4] = (cdata[1] & MSM8939_S4_P1_MASK) >> MSM8939_S4_P1_SHIFT;
-		p1[5] = (cdata[2] & MSM8939_S5_P1_MASK) >> MSM8939_S5_P1_SHIFT;
-		p1[6] = (cdata[2] & MSM8939_S6_P1_MASK) >> MSM8939_S6_P1_SHIFT;
-		p1[7] = (cdata[3] & MSM8939_S7_P1_MASK) >> MSM8939_S7_P1_SHIFT;
-		p1[8] = (cdata[3] & MSM8939_S8_P1_MASK) >> MSM8939_S8_P1_SHIFT;
-		p1[9] = (cdata[4] & MSM8939_S9_P1_MASK) >> MSM8939_S9_P1_SHIFT;
-		for (i = 0; i < priv->num_sensors; i++)
-			p1[i] = ((base0) + p1[i]) << 2;
-		break;
-	default:
-		for (i = 0; i < priv->num_sensors; i++) {
-			p1[i] = 500;
-			p2[i] = 780;
-		}
-		break;
-	}
-
-	compute_intercept_slope(priv, p1, p2, mode);
-	kfree(qfprom_cdata);
-
-	return 0;
-}
-
 static int calibrate_8974(struct tsens_priv *priv)
 {
 	int base1 = 0, base2 = 0, i;
@@ -595,6 +463,12 @@  static const struct reg_field tsens_v0_1_regfields[MAX_REGFIELDS] = {
 	[TRDY] = REG_FIELD(TM_TRDY_OFF, 0, 0),
 };
 
+static const struct tsens_ops ops_v0_1 = {
+	.init		= init_common,
+	.calibrate	= tsens_calibrate_common,
+	.get_temp	= get_temp_common,
+};
+
 static const struct tsens_ops ops_8916 = {
 	.init		= init_common,
 	.calibrate	= calibrate_8916,
@@ -610,15 +484,9 @@  struct tsens_plat_data data_8916 = {
 	.fields	= tsens_v0_1_regfields,
 };
 
-static const struct tsens_ops ops_8939 = {
-	.init		= init_common,
-	.calibrate	= calibrate_8939,
-	.get_temp	= get_temp_common,
-};
-
 struct tsens_plat_data data_8939 = {
 	.num_sensors	= 10,
-	.ops		= &ops_8939,
+	.ops		= &ops_v0_1,
 	.hw_ids		= (unsigned int []){ 0, 1, 2, 3, 5, 6, 7, 8, 9, 10 },
 
 	.feat		= &tsens_v0_1_feat,