This names the GPIO lines on the APQ8016 "SBC" also known
as the DragonBoard 410c, according to the schematic. This
is necessary for a conforming userspace looking across
all GPIO chips for the GPIO lines named "GPIO-A" thru
"GPIO-L".
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
---
I don't have this hardware available, you can test it
easily by compiling tools/gpio/* and issue "lsgpio" to
see the GPIO line names in the console.
Please apply this even if you're not applying the second
patch renaming the DTS files.
---
arch/arm64/boot/dts/qcom/apq8016-sbc.dts | 167 +++++++++++++++++++++++++++++++
1 file changed, 167 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/apq8016-sbc.dts b/arch/arm64/boot/dts/qcom/apq8016-sbc.dts
index 825f489a2af7..40b0d62861bb 100644
--- a/arch/arm64/boot/dts/qcom/apq8016-sbc.dts
+++ b/arch/arm64/boot/dts/qcom/apq8016-sbc.dts
@@ -19,3 +19,170 @@
model = "Qualcomm Technologies, Inc. APQ 8016 SBC";
compatible = "qcom,apq8016-sbc", "qcom,apq8016", "qcom,sbc";
};
+
+/*
+ * Legend: proper name = the GPIO line is used as GPIO
+ * NC = not connected (pin out but not routed from the chip to
+ * anything the board)
+ * "[PER]" = pin is muxed for [peripheral] (not GPIO)
+ * "" = no idea, schematic doesn't say, could be
+ * unrouted (not connected to any external pin)
+ * LSEC = Low Speed External Connector
+ * HSEC = High Speed External Connector
+ *
+ * Line names are taken from the schematic "DragonBoard410c"
+ * dated monday, august 31, 2015. Page 5 in particular.
+ *
+ * For the lines routed to the external connectors the
+ * lines are named after the 96Boards CE Specification 1.0,
+ * Appendix "Expansion Connector Signal Description".
+ *
+ * When the 96Board naming of a line and the schematic name of
+ * the same line are in conflict, the 96Board specification
+ * takes precedence, which means that the external UART on the
+ * LSEC is named UART0 while the schematic and SoC names this
+ * UART3. This is only for the informational lines i.e. "[FOO]",
+ * the GPIO named lines "GPIO-A" thru "GPIO-L" are the only
+ * ones actually used for GPIO.
+ */
+&msmgpio {
+ gpio-line-names =
+ "[UART0_TX]", /* GPIO 0, LSEC pin 1 */
+ "[UART0_RX]",
+ "[UART0_CTS_N]",
+ "[UART0_RTS_N]",
+ "[UART1_TX]",
+ "[UART1_RX]",
+ "[I2C0_SDA]",
+ "[I2C0_SCL]",
+ "[SPI1_MOSI]",
+ "[SPI1_MISO]",
+ "[SPI1_CS_N]", /* GPIO 10 */
+ "[SPI1_CLK]",
+ "GPIO-B",
+ "GPIO-C",
+ "[I2C3_SDA]",
+ "[I2C3_SCL]",
+ "[SPI0_MOSI]",
+ "[SPI0_MISO]",
+ "[SPI0_CS_N]",
+ "[SPI0_CLK]",
+ "HDMI_HPD_N", /* GPIO 20 */
+ "USR_LED_1_CTRL",
+ "[I2C1_SDA]",
+ "[I2C1_SCL]",
+ "GPIO-G",
+ "GPIO-H",
+ "[CSI0_MCLK]",
+ "[CSI1_MCLK]",
+ "GPIO-K",
+ "[I2C2_SDA]",
+ "[I2C2_SCL]", /* GPIO 30 */
+ "DSI2HDMI_INT_N",
+ "DSI_SW_SEL_APQ",
+ "GPIO-L",
+ "GPIO-J",
+ "GPIO-I",
+ "GPIO-A", /* GPIO_36 */
+ "FORCED_USB_BOOT",
+ "SD_CARD_DET_N",
+ "[WCSS_BT_SSBI]",
+ "[WCSS_WLAN_DATA_2]", /* GPIO 40 */
+ "[WCSS_WLAN_DATA_1]",
+ "[WCSS_WLAN_DATA_0]",
+ "[WCSS_WLAN_SET]",
+ "[WCSS_WLAN_CLK]",
+ "[WCSS_FM_SSBI]",
+ "[WCSS_FM_SDI]",
+ "[WCSS_BT_DAT_CTL]",
+ "[WCSS_BT_DAT_STB]",
+ "NC",
+ "NC", /* GPIO 50 */
+ "NC",
+ "NC",
+ "NC",
+ "NC",
+ "NC",
+ "NC",
+ "NC",
+ "NC",
+ "NC",
+ "NC", /* GPIO 60 */
+ "NC",
+ "NC",
+ "[CDC_PDM0_CLK]",
+ "[CDC_PDM0_SYNC]",
+ "[CDC_PDM0_TX0]",
+ "[CDC_PDM0_RX0]",
+ "[CDC_PDM0_RX1]",
+ "[CDC_PDM0_RX2]",
+ "GPIO-D",
+ "NC", /* GPIO 70 */
+ "NC",
+ "NC",
+ "NC",
+ "NC", /* GPIO 74 */
+ "NC",
+ "NC",
+ "NC",
+ "NC",
+ "NC",
+ "BOOT_CONFIG_0", /* GPIO 80 */
+ "BOOT_CONFIG_1",
+ "BOOT_CONFIG_2",
+ "BOOT_CONFIG_3",
+ "NC",
+ "NC",
+ "BOOT_CONFIG_5",
+ "NC",
+ "NC",
+ "NC",
+ "NC", /* GPIO 90 */
+ "NC",
+ "NC",
+ "NC",
+ "NC",
+ "NC",
+ "NC",
+ "NC",
+ "NC",
+ "NC",
+ "NC", /* GPIO 100 */
+ "NC",
+ "NC",
+ "NC",
+ "SSBI_GPS",
+ "NC",
+ "NC",
+ "KEY_VOLP_N",
+ "NC",
+ "NC",
+ "[LS_EXP_MI2S_WS]", /* GPIO 110 */
+ "NC",
+ "NC",
+ "[LS_EXP_MI2S_SCK]",
+ "[LS_EXP_MI2S_DATA0]",
+ "GPIO-E",
+ "NC",
+ "[DSI2HDMI_MI2S_WS]",
+ "[DSI2HDMI_MI2S_SCK]",
+ "[DSI2HDMI_MI2S_DATA0]",
+ "USR_LED_2_CTRL", /* GPIO 120 */
+ "USB_HS_ID";
+};
+
+&pm8916_gpios {
+ gpio-line-names =
+ "USR_LED_3_CTRL",
+ "USR_LED_4_CTRL",
+ "USB_HUB_RESET_N_PM",
+ "USB_SW_SEL_PM";
+};
+
+&pm8916_mpps {
+ gpio-line-names =
+ "VDD_PX_BIAS",
+ "WLAN_LED_CTRL",
+ "BT_LED_CTRL",
+ "GPIO-F";
+};
--
2.13.5
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