EDP: tn8: support 2d rbat_lut tables

Battery impedance tables are modified to two dimensional (rbat as a
function of temperatur and state of charge). This patch updates tn8
data accoringly.

bug 1412781

Change-Id: I3da0fe5f8fd019b1b804c65a67a423b7065ee465
Signed-off-by: Timo Alho <talho@nvidia.com>
Reviewed-on: http://git-master/r/335071
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Juha Tukkinen <jtukkinen@nvidia.com>

diff --git a/arch/arm/mach-tegra/board-tn8-sysedp.c b/arch/arm/mach-tegra/board-tn8-sysedp.c
index 965dcfbe43e4541ac7fba831c9c0e36b878ea798..a424fdea8691b1b5c6dd26c45f51a99db528f7db 100644 (file)
--- a/arch/arm/mach-tegra/board-tn8-sysedp.c
+++ b/arch/arm/mach-tegra/board-tn8-sysedp.c
@@ -90,16 +90,28 @@ static struct sysedp_batmon_ibat_lut tn8_ibat_lut[] = {
        { -30,    0 }
 };
 
-static struct sysedp_batmon_rbat_lut tn8_rbat_lut[] = {
-       { 100,  70000 },
-       {  88,  70000 },
-       {  75,  70000 },
-       {  63,  70000 },
-       {  50,  70000 },
-       {  38,  70000 },
-       {  25,  70000 },
-       {  13,  70000 },
-       {   0,  90000 }
+#if 0
+/* TODO: use this table when battery temp sensing is fixed */
+/*                           60C    40C    25C    0C      -20C      */
+static int rbat_data[] = {  90000, 60000, 70000,  90000, 110000,   /* 100% */
+                           90000, 60000, 70000,  90000, 110000,   /*  13% */
+                          110000, 80000, 90000, 110000, 130000 }; /*   0% */
+static int rbat_temp_axis[] = { 60, 40, 25, 0, -20 };
+static int rbat_capacity_axis[] = { 100, 13, 0 };
+#else
+static int rbat_data[] = {  70000,   /* 100% */
+                           70000,   /*  13% */
+                           90000 }; /*   0% */
+static int rbat_temp_axis[] = { 25 };
+static int rbat_capacity_axis[] = { 100, 13, 0 };
+#endif
+struct sysedp_batmon_rbat_lut tn8_rbat_lut = {
+       .temp_axis = rbat_temp_axis,
+       .temp_size = ARRAY_SIZE(rbat_temp_axis),
+       .capacity_axis = rbat_capacity_axis,
+       .capacity_size = ARRAY_SIZE(rbat_capacity_axis),
+       .data = rbat_data,
+       .data_size = ARRAY_SIZE(rbat_data),
 };
 
 static struct sysedp_batmon_calc_platform_data tn8_batmon_pdata = {
@@ -107,7 +119,7 @@ static struct sysedp_batmon_calc_platform_data tn8_batmon_pdata = {
        .r_const = 60000,
        .vsys_min = 2900000,
        .ibat_lut = tn8_ibat_lut,
-       .rbat_lut = tn8_rbat_lut,
+       .rbat_lut = &tn8_rbat_lut,
 };
 
 static struct platform_device tn8_batmon_device = {