From: Angelo Dureghello <adureghello-rdvid1DuHRBWk0Htik3J/w@xxxxxxxxxxxxxxxx>
Extracting common code, to share common code to be used later
by the AXI driver version (ad3552r-axi.c).
+#include "ad3552r.h"
+
+static const s32 ad3552r_ch_ranges[][2] = {
+ [AD3552R_CH_OUTPUT_RANGE_0__2P5V] = {0, 2500},
+ [AD3552R_CH_OUTPUT_RANGE_0__5V] = {0, 5000},
+ [AD3552R_CH_OUTPUT_RANGE_0__10V] = {0, 10000},
+ [AD3552R_CH_OUTPUT_RANGE_NEG_5__5V] = {-5000, 5000},
+ [AD3552R_CH_OUTPUT_RANGE_NEG_10__10V] = {-10000, 10000}
+};
+
+static const s32 ad3542r_ch_ranges[][2] = {
+ [AD3542R_CH_OUTPUT_RANGE_0__2P5V] = {0, 2500},
+ [AD3542R_CH_OUTPUT_RANGE_0__3V] = {0, 3000},
+ [AD3542R_CH_OUTPUT_RANGE_0__5V] = {0, 5000},
+ [AD3542R_CH_OUTPUT_RANGE_0__10V] = {0, 10000},
+ [AD3542R_CH_OUTPUT_RANGE_NEG_2P5__7P5V] = {-2500, 7500},
+ [AD3542R_CH_OUTPUT_RANGE_NEG_5__5V] = {-5000, 5000}
+};
+int ad3552r_get_custom_gain(struct device *dev, struct fwnode_handle *child,
+ u8 *gs_p, u8 *gs_n, u16 *rfb, s16 *goffs)
+{
+ int err;
+ u32 val;
+ struct fwnode_handle *gain_child __free(fwnode_handle)
+ = fwnode_get_named_child_node(child,
+ "custom-output-range-config");
+
+ if (!gain_child)
+ return dev_err_probe(dev, -EINVAL,
+ "custom-output-range-config mandatory\n");
+
+ err = fwnode_property_read_u32(gain_child, "adi,gain-scaling-p", &val);
+ if (err)
+ return dev_err_probe(dev, err,
+ "adi,gain-scaling-p mandatory\n");
+ *gs_p = val;
+
+ err = fwnode_property_read_u32(gain_child, "adi,gain-scaling-n", &val);
+ if (err)
+ return dev_err_probe(dev, err,
+ "adi,gain-scaling-n property mandatory\n");
+ *gs_n = val;
+
+ err = fwnode_property_read_u32(gain_child, "adi,rfb-ohms", &val);
+ if (err)
+ return dev_err_probe(dev, err,
+ "adi,rfb-ohms mandatoryn");
+ *rfb = val;
+
+ err = fwnode_property_read_u32(gain_child, "adi,gain-offset", &val);
+ if (err)
+ return dev_err_probe(dev, err,
+ "adi,gain-offset mandatory\n");
+ *goffs = val;
+
+ return 0;
+}