x86/platform/atom/punit: Enable support for Merrifield

Intel Merrifield platform has Punit generation that somehow compatible to what
is already supported by punit_atom_debug driver.

Add necessary bits to enable that support.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1465842481-136852-2-git-send-email-andriy.shevchenko@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 13 insertions, 2 deletions

diff --git a/arch/x86/platform/atom/punit_atom_debug.c b/arch/x86/platform/atom/punit_atom_debug.c
index 109782996867..8ff7b9355416 100644
--- a/arch/x86/platform/atom/punit_atom_debug.c
+++ b/arch/x86/platform/atom/punit_atom_debug.c
@@ -26,8 +26,6 @@
 #include <asm/intel-family.h>
 #include <asm/iosf_mbi.h>
 
-/* Power gate status reg */
-#define PWRGT_STATUS            0x61
 /* Subsystem config/status Video processor */
 #define VED_SS_PM0              0x32
 /* Subsystem config/status ISP (Image Signal Processor) */
@@ -36,12 +34,16 @@
 #define MIO_SS_PM               0x3B
 /* Shift bits for getting status for video, isp and i/o */
 #define SSS_SHIFT               24
+
+/* Power gate status reg */
+#define PWRGT_STATUS            0x61
 /* Shift bits for getting status for graphics rendering */
 #define RENDER_POS              0
 /* Shift bits for getting status for media control */
 #define MEDIA_POS               2
 /* Shift bits for getting status for Valley View/Baytrail display */
 #define VLV_DISPLAY_POS         6
+
 /* Subsystem config/status display for Cherry Trail SOC */
 #define CHT_DSP_SSS             0x36
 /* Shift bits for getting status for display */
@@ -53,6 +55,14 @@ struct punit_device {
         int sss_pos;
 };
 
+static const struct punit_device punit_device_tng[] = {
+        { "DISPLAY",    CHT_DSP_SSS,    SSS_SHIFT },
+        { "VED",        VED_SS_PM0,     SSS_SHIFT },
+        { "ISP",        ISP_SS_PM0,     SSS_SHIFT },
+        { "MIO",        MIO_SS_PM,      SSS_SHIFT },
+        { NULL }
+};
+
 static const struct punit_device punit_device_byt[] = {
         { "GFX RENDER", PWRGT_STATUS,   RENDER_POS },
         { "GFX MEDIA",  PWRGT_STATUS,   MEDIA_POS },
@@ -145,6 +155,7 @@ static void punit_dbgfs_unregister(void)
 
 static const struct x86_cpu_id intel_punit_cpu_ids[] = {
         ICPU(INTEL_FAM6_ATOM_SILVERMONT1, punit_device_byt),
+        ICPU(INTEL_FAM6_ATOM_MERRIFIELD1, punit_device_tng),
         ICPU(INTEL_FAM6_ATOM_AIRMONT,     punit_device_cht),
         {}
 };