common: Convert *.c/h from UTF-8 to ASCII enconfing

Convert UTF-8 chars to ASCII in cases where make sense. No Copyright or
names are converted.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Acked-by: Marek Behún <kabel@kernel.org>
diff --git a/drivers/clk/renesas/rzg2l-cpg.c b/drivers/clk/renesas/rzg2l-cpg.c
index dba0099..c8735d8 100644
--- a/drivers/clk/renesas/rzg2l-cpg.c
+++ b/drivers/clk/renesas/rzg2l-cpg.c
@@ -313,9 +313,9 @@
 
 	/*
 	 * As per the HW manual, we should not directly switch from 533 MHz to
-	 * 400 MHz and vice versa. To change the setting from 2’b01 (533 MHz)
-	 * to 2’b10 (400 MHz) or vice versa, Switch to 2’b11 (266 MHz) first,
-	 * and then switch to the target setting (2’b01 (533 MHz) or 2’b10
+	 * 400 MHz and vice versa. To change the setting from 2'b01 (533 MHz)
+	 * to 2'b10 (400 MHz) or vice versa, Switch to 2'b11 (266 MHz) first,
+	 * and then switch to the target setting (2'b01 (533 MHz) or 2'b10
 	 * (400 MHz)).
 	 */
 	if (new_sel != SEL_SDHI_266MHz && prev_sel != SEL_SDHI_266MHz) {
diff --git a/drivers/clk/stm32/clk-stm32-core.h b/drivers/clk/stm32/clk-stm32-core.h
index 53c2b46..f9ef070 100644
--- a/drivers/clk/stm32/clk-stm32-core.h
+++ b/drivers/clk/stm32/clk-stm32-core.h
@@ -178,7 +178,7 @@
  *                ------------------------------                   ----------
 
  * Each peripheral requires a bus interface clock, named ckg_bus_perx
- * (for peripheral ‘x’).
+ * (for peripheral `x').
  * Some peripherals (SAI, UART...) need also a dedicated clock for their
  * communication interface, this clock is generally asynchronous with respect to
  * the bus interface clock, and is named kernel clock (ckg_ker_perx).
@@ -188,16 +188,16 @@
  * the bus or the Kernel was enable.
  *
  * Example:
- * 1) enable the bus clock
- *	--> bus_clk ref_counting = 1, gate_ref_count = 1
- * 2) enable the kernel clock
- *	--> perx_ker_ck ref_counting = 1, gate_ref_count = 2
- * 3) disable kernel clock
- * 	---> perx_ker_ck ref_counting = 0, gate_ref_count = 1
- * 	==> then i will not gate because gate_ref_count > 0
- * 4) disable bus clock
- *	--> bus_clk  ref_counting  = 0, gate_ref_count = 0
- *	==> then i can gate (write in the register) because
+ * 1) enable the bus clock
+ *	--> bus_clk ref_counting = 1, gate_ref_count = 1
+ * 2) enable the kernel clock
+ *	--> perx_ker_ck ref_counting = 1, gate_ref_count = 2
+ * 3) disable kernel clock
+ * 	---> perx_ker_ck ref_counting = 0, gate_ref_count = 1
+ * 	==> then i will not gate because gate_ref_count > 0
+ * 4) disable bus clock
+ *	--> bus_clk  ref_counting  = 0, gate_ref_count = 0
+ *	==> then i can gate (write in the register) because
  *	    gate_ref_count = 0
  */
 
diff --git a/drivers/led/led_lp5562.c b/drivers/led/led_lp5562.c
index 431d7e1..0c5f9bc 100644
--- a/drivers/led/led_lp5562.c
+++ b/drivers/led/led_lp5562.c
@@ -125,9 +125,9 @@
 
 	/*
 	 * Data sheet says "Delay between consecutive I2C writes to
-	 * ENABLE register (00h) need to be longer than 488 μs
+	 * ENABLE register (00h) need to be longer than 488 us
 	 * (typical)." and "Delay between consecutive I2C writes to
-	 * OP_MODE register need to be longer than 153 μs (typ)."
+	 * OP_MODE register need to be longer than 153 us (typ)."
 	 *
 	 * The linux driver does usleep_range(500, 600) and
 	 * usleep_range(200, 300), respectively.
diff --git a/drivers/mtd/nand/raw/nand_ids.c b/drivers/mtd/nand/raw/nand_ids.c
index 22ea5e2..be60d6d 100644
--- a/drivers/mtd/nand/raw/nand_ids.c
+++ b/drivers/mtd/nand/raw/nand_ids.c
@@ -62,7 +62,7 @@
 		{ .id = {0xad, 0xde, 0x94, 0xda, 0x74, 0xc4} },
 		  SZ_8K, SZ_8K, SZ_2M, NAND_NEED_SCRAMBLING, 6, 640,
 		  NAND_ECC_INFO(40, SZ_1K), 4 },
-	{"H27QCG8T2E5R‐BCF 64G 3.3V 8-bit",
+	{"H27QCG8T2E5R-BCF 64G 3.3V 8-bit",
 		{ .id = {0xad, 0xde, 0x14, 0xa7, 0x42, 0x4a} },
 		  SZ_16K, SZ_8K, SZ_4M, NAND_NEED_SCRAMBLING, 6, 1664,
 		  NAND_ECC_INFO(56, SZ_1K), 1 },
diff --git a/drivers/rng/stm32_rng.c b/drivers/rng/stm32_rng.c
index 61d5ed6..44e8a46 100644
--- a/drivers/rng/stm32_rng.c
+++ b/drivers/rng/stm32_rng.c
@@ -74,7 +74,7 @@
  * Extracts from the STM32 RNG specification when RNG supports CONDRST.
  *
  * When a noise source (or seed) error occurs, the RNG stops generating
- * random numbers and sets to “1” both SEIS and SECS bits to indicate
+ * random numbers and sets to "1" both SEIS and SECS bits to indicate
  * that a seed error occurred. (...)
  *
  * 1. Software reset by writing CONDRST at 1 and at 0 (see bitfield
@@ -127,12 +127,12 @@
  * Extracts from the STM32 RNG specification, when CONDRST is not supported
  *
  * When a noise source (or seed) error occurs, the RNG stops generating
- * random numbers and sets to “1” both SEIS and SECS bits to indicate
+ * random numbers and sets to "1" both SEIS and SECS bits to indicate
  * that a seed error occurred. (...)
  *
  * The following sequence shall be used to fully recover from a seed
  * error after the RNG initialization:
- * 1. Clear the SEIS bit by writing it to “0”.
+ * 1. Clear the SEIS bit by writing it to "0".
  * 2. Read out 12 words from the RNG_DR register, and discard each of
  * them in order to clean the pipeline.
  * 3. Confirm that SEIS is still cleared. Random number generation is
diff --git a/drivers/soc/ti/k3-navss-ringacc.c b/drivers/soc/ti/k3-navss-ringacc.c
index 7a2fbb0..ed39ff2 100644
--- a/drivers/soc/ti/k3-navss-ringacc.c
+++ b/drivers/soc/ti/k3-navss-ringacc.c
@@ -418,7 +418,7 @@
 			k3_ringacc_ring_reconfig_qmode_sci(
 					ring, K3_NAV_RINGACC_RING_MODE_RING);
 		/*
-		 * 4. Ring the doorbell 2**22 – ringOcc times.
+		 * 4. Ring the doorbell 2**22 - ringOcc times.
 		 * This will wrap the internal UDMAP ring state occupancy
 		 * counter (which is 21-bits wide) to 0.
 		 */
diff --git a/drivers/thermal/thermal_sandbox.c b/drivers/thermal/thermal_sandbox.c
index acc364f..7dc0d10 100644
--- a/drivers/thermal/thermal_sandbox.c
+++ b/drivers/thermal/thermal_sandbox.c
@@ -12,7 +12,7 @@
 
 int sandbox_thermal_get_temp(struct udevice *dev, int *temp)
 {
-	/* Simply return 100°C */
+	/* Simply return 100 deg C */
 	*temp = 100;
 
 	return 0;
diff --git a/drivers/video/renesas-r61307.c b/drivers/video/renesas-r61307.c
index 426fdc6..986ebaf 100644
--- a/drivers/video/renesas-r61307.c
+++ b/drivers/video/renesas-r61307.c
@@ -19,7 +19,7 @@
 #include <power/regulator.h>
 
 /*
- * The datasheet is not publicly available, all values are
+ * The datasheet is not publicly available, all values are
  * taken from the downstream. If you have access to datasheets,
  * corrections are welcome.
  */
diff --git a/drivers/video/renesas-r69328.c b/drivers/video/renesas-r69328.c
index d2f7169..f14f764 100644
--- a/drivers/video/renesas-r69328.c
+++ b/drivers/video/renesas-r69328.c
@@ -19,7 +19,7 @@
 #include <power/regulator.h>
 
 /*
- * The datasheet is not publicly available, all values are
+ * The datasheet is not publicly available, all values are
  * taken from the downstream. If you have access to datasheets,
  * corrections are welcome.
  */
diff --git a/drivers/xen/pvblock.c b/drivers/xen/pvblock.c
index 1df04e2..9fc51d2 100644
--- a/drivers/xen/pvblock.c
+++ b/drivers/xen/pvblock.c
@@ -79,7 +79,7 @@
 };
 
 /**
- * struct blkfront_aiocb - AIO сontrol block
+ * struct blkfront_aiocb - AIO control block
  * @aio_dev: Blockfront device
  * @aio_buf: Memory buffer, which must be sector-aligned for
  *	     @aio_dev sector