linux-kernel - [PATCH v2 4/8] leds: qcom-lpg: Add support for PMI632 LPG

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Date:   Tue, 18 Apr 2023 18:43:20 +0200
From:   Luca Weiss <luca@...tu.xyz>
To:     ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Pavel Machek <pavel@....cz>, Lee Jones <lee@...nel.org>,
        Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Stephen Boyd <sboyd@...nel.org>,
        Jonathan Corbet <corbet@....net>
Cc:     linux-arm-msm@...r.kernel.org, linux-gpio@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-leds@...r.kernel.org, linux-iio@...r.kernel.org,
        linux-doc@...r.kernel.org, Luca Weiss <luca@...tu.xyz>
Subject: [PATCH v2 4/8] leds: qcom-lpg: Add support for PMI632 LPG

The PMI632 PMIC contains 5 PWM channels, 3 of which can be used for
LEDs.

For the LED pattern it doesn't have LUT like other PMICs but uses SDAM
instead. This is not currently implemented in the driver but since LPG
works fine without it, add support for the PMIC now.

Acked-by: Pavel Machek <pavel@....cz>
Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>
Signed-off-by: Luca Weiss <luca@...tu.xyz>
---
 drivers/leds/rgb/leds-qcom-lpg.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/leds/rgb/leds-qcom-lpg.c b/drivers/leds/rgb/leds-qcom-lpg.c
index 67f48f222109..51763ecb8c1e 100644
--- a/drivers/leds/rgb/leds-qcom-lpg.c
+++ b/drivers/leds/rgb/leds-qcom-lpg.c
@@ -1353,6 +1353,20 @@ static const struct lpg_data pm8994_lpg_data = {
 	},
 };
 
+/* PMI632 uses SDAM instead of LUT for pattern */
+static const struct lpg_data pmi632_lpg_data = {
+	.triled_base = 0xd000,
+
+	.num_channels = 5,
+	.channels = (const struct lpg_channel_data[]) {
+		{ .base = 0xb300, .triled_mask = BIT(7) },
+		{ .base = 0xb400, .triled_mask = BIT(6) },
+		{ .base = 0xb500, .triled_mask = BIT(5) },
+		{ .base = 0xb600 },
+		{ .base = 0xb700 },
+	},
+};
+
 static const struct lpg_data pmi8994_lpg_data = {
 	.lut_base = 0xb000,
 	.lut_size = 24,
@@ -1436,6 +1450,7 @@ static const struct of_device_id lpg_of_table[] = {
 	{ .compatible = "qcom,pm8916-pwm", .data = &pm8916_pwm_data },
 	{ .compatible = "qcom,pm8941-lpg", .data = &pm8941_lpg_data },
 	{ .compatible = "qcom,pm8994-lpg", .data = &pm8994_lpg_data },
+	{ .compatible = "qcom,pmi632-lpg", .data = &pmi632_lpg_data },
 	{ .compatible = "qcom,pmi8994-lpg", .data = &pmi8994_lpg_data },
 	{ .compatible = "qcom,pmi8998-lpg", .data = &pmi8998_lpg_data },
 	{ .compatible = "qcom,pmc8180c-lpg", .data = &pm8150l_lpg_data },

-- 
2.40.0