clk: qcom: Add Global Clock Controller driver for QCM2290

Add Global Clock Controller (GCC) driver for QCM2290.  This is a porting
of gcc-scuba driver from CAF msm-4.19.  Because the alpha_pll on the
platform has a different register layout (offsets), its own
clk_alpha_pll_regs_offset[] is used in the driver.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

drivers/clk/qcom/Kconfig

@@ -324,6 +324,13 @@ config MSM_MMCC_8998
 	  Say Y if you want to support multimedia devices such as display,
 	  graphics, video encode/decode, camera, etc.
 
+config QCM_GCC_2290
+	tristate "QCM2290 Global Clock Controller"
+	help
+	  Support for the global clock controller on QCM2290 devices.
+	  Say Y if you want to use multimedia devices or peripheral
+	  devices such as UART, SPI, I2C, USB, SD/eMMC etc.
+
 config QCS_GCC_404
 	tristate "QCS404 Global Clock Controller"
 	help

drivers/clk/qcom/Makefile

@@ -54,6 +54,7 @@ obj-$(CONFIG_QCOM_CLK_APCS_SDX55) += apcs-sdx55.o
 obj-$(CONFIG_QCOM_CLK_RPM) += clk-rpm.o
 obj-$(CONFIG_QCOM_CLK_RPMH) += clk-rpmh.o
 obj-$(CONFIG_QCOM_CLK_SMD_RPM) += clk-smd-rpm.o
+obj-$(CONFIG_QCM_GCC_2290) += gcc-qcm2290.o
 obj-$(CONFIG_QCS_GCC_404) += gcc-qcs404.o
 obj-$(CONFIG_QCS_Q6SSTOP_404) += q6sstop-qcs404.o
 obj-$(CONFIG_QCS_TURING_404) += turingcc-qcs404.o