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Diffstat (limited to 'include/linux/qcom-geni-se.h')
-rw-r--r--include/linux/qcom-geni-se.h19
1 files changed, 18 insertions, 1 deletions
diff --git a/include/linux/qcom-geni-se.h b/include/linux/qcom-geni-se.h
index 7c811eebcaab..f5672785c0c4 100644
--- a/include/linux/qcom-geni-se.h
+++ b/include/linux/qcom-geni-se.h
@@ -8,11 +8,24 @@
#include <linux/interconnect.h>
-/* Transfer mode supported by GENI Serial Engines */
+/**
+ * enum geni_se_xfer_mode: Transfer modes supported by Serial Engines
+ *
+ * @GENI_SE_INVALID: Invalid mode
+ * @GENI_SE_FIFO: FIFO mode. Data is transferred with SE FIFO
+ * by programmed IO method
+ * @GENI_SE_DMA: Serial Engine DMA mode. Data is transferred
+ * with SE by DMAengine internal to SE
+ * @GENI_GPI_DMA: GPI DMA mode. Data is transferred using a DMAengine
+ * configured by a firmware residing on a GSI engine. This DMA name is
+ * interchangeably used as GSI or GPI which seem to imply the same DMAengine
+ */
+
enum geni_se_xfer_mode {
GENI_SE_INVALID,
GENI_SE_FIFO,
GENI_SE_DMA,
+ GENI_GPI_DMA,
};
/* Protocols supported by GENI Serial Engines */
@@ -63,6 +76,7 @@ struct geni_se {
#define SE_GENI_STATUS 0x40
#define GENI_SER_M_CLK_CFG 0x48
#define GENI_SER_S_CLK_CFG 0x4c
+#define GENI_IF_DISABLE_RO 0x64
#define GENI_FW_REVISION_RO 0x68
#define SE_GENI_CLK_SEL 0x7c
#define SE_GENI_DMA_MODE_EN 0x258
@@ -105,6 +119,9 @@ struct geni_se {
#define CLK_DIV_MSK GENMASK(15, 4)
#define CLK_DIV_SHFT 4
+/* GENI_IF_DISABLE_RO fields */
+#define FIFO_IF_DISABLE (BIT(0))
+
/* GENI_FW_REVISION_RO fields */
#define FW_REV_PROTOCOL_MSK GENMASK(15, 8)
#define FW_REV_PROTOCOL_SHFT 8