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Diffstat (limited to 'drivers/gpu/drm/i915/i915_reg.h')
-rw-r--r--drivers/gpu/drm/i915/i915_reg.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 5a7c63e64381..65b837e96fe6 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -8280,7 +8280,7 @@ enum {
/* MIPI DSI registers */
-#define _MIPI_PORT(port, a, c) ((port) ? c : a) /* ports A and C only */
+#define _MIPI_PORT(port, a, c) (((port) == PORT_A) ? a : c) /* ports A and C only */
#define _MMIO_MIPI(port, a, c) _MMIO(_MIPI_PORT(port, a, c))
#define MIPIO_TXESC_CLK_DIV1 _MMIO(0x160004)
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