diff --git a/components/esp_lcd/include/esp_lcd_panel_io.h b/components/esp_lcd/include/esp_lcd_panel_io.h
index f702a9251e5..035864b36a3 100644
--- a/components/esp_lcd/include/esp_lcd_panel_io.h
+++ b/components/esp_lcd/include/esp_lcd_panel_io.h
@@ -23,7 +23,7 @@ typedef struct esp_lcd_i80_bus_t *esp_lcd_i80_bus_handle_t;   /*!< Type of LCD i
  * @brief Transmit LCD command and receive corresponding parameters
  *
  * @note Commands sent by this function are short, so they are sent using polling transactions.
- *       The function does not return before the command tranfer is completed.
+ *       The function does not return before the command transfer is completed.
  *       If any queued transactions sent by `esp_lcd_panel_io_tx_color()` are still pending when this function is called,
  *       this function will wait until they are finished and the queue is empty before sending the command(s).
  *
@@ -42,7 +42,7 @@ esp_err_t esp_lcd_panel_io_rx_param(esp_lcd_panel_io_handle_t io, int lcd_cmd, v
  * @brief Transmit LCD command and corresponding parameters
  *
  * @note Commands sent by this function are short, so they are sent using polling transactions.
- *       The function does not return before the command tranfer is completed.
+ *       The function does not return before the command transfer is completed.
  *       If any queued transactions sent by `esp_lcd_panel_io_tx_color()` are still pending when this function is called,
  *       this function will wait until they are finished and the queue is empty before sending the command(s).
  *
@@ -65,7 +65,7 @@ esp_err_t esp_lcd_panel_io_tx_param(esp_lcd_panel_io_handle_t io, int lcd_cmd, c
  *       Recycling of color buffer should be done in the callback `on_color_trans_done()`.
  *
  * @param[in] io LCD panel IO handle, which is created by factory API like `esp_lcd_new_panel_io_spi()`
- * @param[in] lcd_cmd The specific LCD command
+ * @param[in] lcd_cmd The specific LCD command, set to -1 if no command needed
  * @param[in] color Buffer that holds the RGB color data
  * @param[in] color_size Size of `color` in memory, in bytes
  * @return
@@ -75,7 +75,7 @@ esp_err_t esp_lcd_panel_io_tx_param(esp_lcd_panel_io_handle_t io, int lcd_cmd, c
 esp_err_t esp_lcd_panel_io_tx_color(esp_lcd_panel_io_handle_t io, int lcd_cmd, const void *color, size_t color_size);
 
 /**
- * @brief Destory LCD panel IO handle (deinitialize panel and free all corresponding resource)
+ * @brief Destroy LCD panel IO handle (deinitialize panel and free all corresponding resource)
  *
  * @param[in] io LCD panel IO handle, which is created by factory API like `esp_lcd_new_panel_io_spi()`
  * @return
@@ -105,7 +105,7 @@ typedef bool (*esp_lcd_panel_io_color_trans_done_cb_t)(esp_lcd_panel_io_handle_t
  */
 typedef struct {
     int cs_gpio_num; /*!< GPIO used for CS line */
-    int dc_gpio_num; /*!< GPIO used to select the D/C line, set this to -1 if the D/C line not controlled by manually pulling high/low GPIO */
+    int dc_gpio_num; /*!< GPIO used to select the D/C line, set this to -1 if the D/C line is not used */
     int spi_mode;    /*!< Traditional SPI mode (0~3) */
     unsigned int pclk_hz;    /*!< Frequency of pixel clock */
     size_t trans_queue_depth; /*!< Size of internal transaction queue */
@@ -117,6 +117,7 @@ typedef struct {
         unsigned int dc_low_on_data: 1;  /*!< If this flag is enabled, DC line = 0 means transfer data, DC line = 1 means transfer command; vice versa */
         unsigned int octal_mode: 1;      /*!< transmit with octal mode (8 data lines), this mode is used to simulate Intel 8080 timing */
         unsigned int lsb_first: 1;       /*!< transmit LSB bit first */
+        unsigned int cs_high_active: 1;  /*!< CS line is high active */
     } flags; /*!< Extra flags to fine-tune the SPI device */
 } esp_lcd_panel_io_spi_config_t;
 
@@ -141,7 +142,7 @@ typedef struct {
     uint32_t dev_addr; /*!< I2C device address */
     esp_lcd_panel_io_color_trans_done_cb_t on_color_trans_done; /*!< Callback invoked when color data transfer has finished */
     void *user_ctx; /*!< User private data, passed directly to on_color_trans_done's user_ctx */
-    size_t control_phase_bytes; /*!< I2C LCD panel will encode control information (e.g. D/C seclection) into control phase, in several bytes */
+    size_t control_phase_bytes; /*!< I2C LCD panel will encode control information (e.g. D/C selection) into control phase, in several bytes */
     unsigned int dc_bit_offset; /*!< Offset of the D/C selection bit in control phase */
     int lcd_cmd_bits;           /*!< Bit-width of LCD command */
     int lcd_param_bits;         /*!< Bit-width of LCD parameter */
@@ -193,7 +194,7 @@ typedef struct {
 esp_err_t esp_lcd_new_i80_bus(const esp_lcd_i80_bus_config_t *bus_config, esp_lcd_i80_bus_handle_t *ret_bus);
 
 /**
- * @brief Destory Intel 8080 bus handle
+ * @brief Destroy Intel 8080 bus handle
  *
  * @param[in] bus Intel 8080 bus handle, created by `esp_lcd_new_i80_bus()`
  * @return
@@ -210,7 +211,7 @@ typedef struct {
     int cs_gpio_num;         /*!< GPIO used for CS line, set to -1 will declaim exclusively use of I80 bus */
     uint32_t pclk_hz;        /*!< Frequency of pixel clock */
     size_t trans_queue_depth; /*!< Transaction queue size, larger queue, higher throughput */
-    esp_lcd_panel_io_color_trans_done_cb_t on_color_trans_done; /*!< Callback invoked when color data was tranferred done */
+    esp_lcd_panel_io_color_trans_done_cb_t on_color_trans_done; /*!< Callback invoked when color data was transferred done */
     void *user_ctx;    /*!< User private data, passed directly to on_color_trans_done's user_ctx */
     int lcd_cmd_bits;   /*!< Bit-width of LCD command */
     int lcd_param_bits; /*!< Bit-width of LCD parameter */
diff --git a/components/esp_lcd/src/esp_lcd_panel_io_spi.c b/components/esp_lcd/src/esp_lcd_panel_io_spi.c
index d63d9e1b6d2..10b9f055af8 100644
--- a/components/esp_lcd/src/esp_lcd_panel_io_spi.c
+++ b/components/esp_lcd/src/esp_lcd_panel_io_spi.c
@@ -66,14 +66,13 @@ esp_err_t esp_lcd_new_panel_io_spi(esp_lcd_spi_bus_handle_t bus, const esp_lcd_p
     esp_err_t ret = ESP_OK;
     esp_lcd_panel_io_spi_t *spi_panel_io = NULL;
     ESP_GOTO_ON_FALSE(bus && io_config && ret_io, ESP_ERR_INVALID_ARG, err, TAG, "invalid argument");
-    // at the moment, the hardware doesn't support 9-bit SPI LCD, but in the future, there will be such a feature
-    // so for now, we will force the user to use the GPIO to control the LCD's D/C line.
-    ESP_GOTO_ON_FALSE(io_config->dc_gpio_num >= 0, ESP_ERR_INVALID_ARG, err, TAG, "invalid DC mode");
     spi_panel_io = calloc(1, sizeof(esp_lcd_panel_io_spi_t) + sizeof(lcd_spi_trans_descriptor_t) * io_config->trans_queue_depth);
     ESP_GOTO_ON_FALSE(spi_panel_io, ESP_ERR_NO_MEM, err, TAG, "no mem for spi panel io");
 
     spi_device_interface_config_t devcfg = {
-        .flags = SPI_DEVICE_HALFDUPLEX | (io_config->flags.lsb_first ? SPI_DEVICE_TXBIT_LSBFIRST : 0),
+        .flags = SPI_DEVICE_HALFDUPLEX |
+        (io_config->flags.lsb_first ? SPI_DEVICE_TXBIT_LSBFIRST : 0) |
+        (io_config->flags.cs_high_active ? SPI_DEVICE_POSITIVE_CS : 0),
         .clock_speed_hz = io_config->pclk_hz,
         .mode = io_config->spi_mode,
         .spics_io_num = io_config->cs_gpio_num,
@@ -191,7 +190,7 @@ static esp_err_t panel_io_spi_tx_param(esp_lcd_panel_io_t *io, int lcd_cmd, cons
     }
     lcd_trans = &spi_panel_io->trans_pool[0];
     memset(lcd_trans, 0, sizeof(lcd_spi_trans_descriptor_t));
-    spi_lcd_prepare_cmd_buffer(spi_panel_io, &lcd_cmd);
+
     lcd_trans->base.user = spi_panel_io;
     lcd_trans->base.flags |= SPI_TRANS_CS_KEEP_ACTIVE;
     if (spi_panel_io->flags.octal_mode) {
@@ -200,6 +199,7 @@ static esp_err_t panel_io_spi_tx_param(esp_lcd_panel_io_t *io, int lcd_cmd, cons
     }
 
     if (send_cmd) {
+        spi_lcd_prepare_cmd_buffer(spi_panel_io, &lcd_cmd);
         lcd_trans->flags.dc_gpio_level = !spi_panel_io->flags.dc_data_level; // set D/C line to command mode
         lcd_trans->base.length = spi_panel_io->lcd_cmd_bits;
         lcd_trans->base.tx_buffer = &lcd_cmd;
@@ -244,7 +244,7 @@ static esp_err_t panel_io_spi_rx_param(esp_lcd_panel_io_t *io, int lcd_cmd, void
     }
     lcd_trans = &spi_panel_io->trans_pool[0];
     memset(lcd_trans, 0, sizeof(lcd_spi_trans_descriptor_t));
-    spi_lcd_prepare_cmd_buffer(spi_panel_io, &lcd_cmd);
+
     lcd_trans->base.user = spi_panel_io;
     lcd_trans->base.flags |= SPI_TRANS_CS_KEEP_ACTIVE;
     if (spi_panel_io->flags.octal_mode) {
@@ -253,6 +253,7 @@ static esp_err_t panel_io_spi_rx_param(esp_lcd_panel_io_t *io, int lcd_cmd, void
     }
 
     if (send_cmd) {
+        spi_lcd_prepare_cmd_buffer(spi_panel_io, &lcd_cmd);
         lcd_trans->flags.dc_gpio_level = !spi_panel_io->flags.dc_data_level; // set D/C line to command mode
         lcd_trans->base.length = spi_panel_io->lcd_cmd_bits;
         lcd_trans->base.tx_buffer = &lcd_cmd;
@@ -285,6 +286,7 @@ static esp_err_t panel_io_spi_tx_color(esp_lcd_panel_io_t *io, int lcd_cmd, cons
     spi_transaction_t *spi_trans = NULL;
     lcd_spi_trans_descriptor_t *lcd_trans = NULL;
     esp_lcd_panel_io_spi_t *spi_panel_io = __containerof(io, esp_lcd_panel_io_spi_t, base);
+    bool send_cmd = (lcd_cmd >= 0);
 
     // before issue a polling transaction, need to wait queued transactions finished
     size_t num_trans_inflight = spi_panel_io->num_trans_inflight;
@@ -295,18 +297,21 @@ static esp_err_t panel_io_spi_tx_color(esp_lcd_panel_io_t *io, int lcd_cmd, cons
     }
     lcd_trans = &spi_panel_io->trans_pool[0];
     memset(lcd_trans, 0, sizeof(lcd_spi_trans_descriptor_t));
-    spi_lcd_prepare_cmd_buffer(spi_panel_io, &lcd_cmd);
-    lcd_trans->base.user = spi_panel_io;
-    lcd_trans->flags.dc_gpio_level = !spi_panel_io->flags.dc_data_level; // set D/C line to command mode
-    lcd_trans->base.length = spi_panel_io->lcd_cmd_bits;
-    lcd_trans->base.tx_buffer = &lcd_cmd;
-    if (spi_panel_io->flags.octal_mode) {
-        // use 8 lines for transmitting command, address and data
-        lcd_trans->base.flags |= (SPI_TRANS_MULTILINE_CMD | SPI_TRANS_MULTILINE_ADDR | SPI_TRANS_MODE_OCT);
+
+    if (send_cmd) {
+        spi_lcd_prepare_cmd_buffer(spi_panel_io, &lcd_cmd);
+        lcd_trans->base.user = spi_panel_io;
+        lcd_trans->flags.dc_gpio_level = !spi_panel_io->flags.dc_data_level; // set D/C line to command mode
+        lcd_trans->base.length = spi_panel_io->lcd_cmd_bits;
+        lcd_trans->base.tx_buffer = &lcd_cmd;
+        if (spi_panel_io->flags.octal_mode) {
+            // use 8 lines for transmitting command, address and data
+            lcd_trans->base.flags |= (SPI_TRANS_MULTILINE_CMD | SPI_TRANS_MULTILINE_ADDR | SPI_TRANS_MODE_OCT);
+        }
+        // command is short, using polling mode
+        ret = spi_device_polling_transmit(spi_panel_io->spi_dev, &lcd_trans->base);
+        ESP_GOTO_ON_ERROR(ret, err, TAG, "spi transmit (polling) command failed");
     }
-    // command is short, using polling mode
-    ret = spi_device_polling_transmit(spi_panel_io->spi_dev, &lcd_trans->base);
-    ESP_GOTO_ON_ERROR(ret, err, TAG, "spi transmit (polling) command failed");
 
     // split to chunks if required:
     // the SPI bus has a maximum transaction size determined by SPI_LL_DATA_MAX_BIT_LEN